Which Is A Treat To Environment

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Which Is A Treat To Environment
Explanation: Examination of the various threats to the Earth’s environment includes human impact on the planet. Catch phrases such as carbon footprint, global warming, deforestation, and other commonly used terms have become the everyday jargon for those concerned about the environment.

Which is a threat to the environment?

Healthy environments support healthy wildlife. Twenty-first century threats to our environment—including diseases, pollution, climate inequity, and a warming climate—threaten wildlife and people alike touching every facet of our lives. The National Wildlife Federation unites Americans addressing these critical challenges and in protecting our wildlife and their habitats.

By doing so, we’re not just helping our wildlife to flourish—we’re helping people live healthier lives, too. As our nation’s population continues to grow, our environment faces increasing strain. The National Wildlife Federation is fighting for more assertive policies to address modern threats, climate inequity that directly affects those not seen, heard and under-resourced, and restoring healthy wildlife populations.

Action ranges from curbing greenhouse gas emissions and increasing carbon sequestration, to protecting at-risk human and wildlife populations from toxic chemicals, contaminants, and non-native invaders. We’re also seeking innovative ways to solve current problems and prevent new threats from emerging.

Which of the following is a treat to environment?

Detailed Solution. The correct answer is Growing population.

Which is a threat to environment growing?

The rising population is contributing to global warming. Furthermore, global warming contributes to climate change, like growing temperatures, low rainfall levels, melting glaciers, and so on.

Which is not a threat to environment?

Growing plants is not a threat to environment.

What are 4 threats to the environment?

What are the five biggest threats to biodiversity? – Show According to the UN’s Convention on Biological Diversity there are five main threats to biodiversity. In descending order these are: changes in land and sea use; direct exploitation of natural resources; climate change; pollution and invasive species.1.

  1. For terrestrial and freshwater ecosystems, land-use change has had the largest relative negative impact on nature since 1970.
  2. More than a third of the world’s land surface and nearly 75% of freshwater resources are now devoted to crop or livestock production.
  3. Alongside a doubling of urban area since 1992, things such as wetlands, scrubland and woodlands – which wildlife relies on – are ironed out from the landscape.2.

The direct exploitation of organisms and non-living materials, including logging, hunting and fishing and the extraction of soils and water are all negatively affecting ecosystems, In marine environments, overfishing is considered to be the most serious driver of biodiversity loss.

  1. One quarter of the world’s commercial fisheries are overexploited, according to a 2005 Millennium Ecosystem Assessment,3.
  2. The climate crisis is dismantling ecosystems at every level.
  3. Extreme weather events such as tropical storms and flooding are destroying habitats.
  4. Warmer temperatures are also changing the timing of natural events – such as the availability of insects and when birds hatch their eggs in spring.

The distribution of species and their range is also changing.4. Many types of pollution are increasing. In marine environments, pollution from agricultural runoff (mainly nitrogen and phosphorus) do huge damage to ecosystems. Agricultural runoff causes toxic algal blooms and even “dead zones” in the worst affected areas.

Marine plastic pollution has increased tenfold since 1980, affecting at least 267 species.5. Since the 17th century, invasive species have contributed to 40% of all known animal extinctions. Nearly one fifth of the Earth’s surface is at risk of plant and animal invasions. Invasive species change the composition of ecosystems by outcompeting native species.

Hotspots for this expansion have included wildlife-rich grasslands in the “prairie pothole” region which stretches between Iowa, Dakota, Montana and southern Canada and is home to more than 50% of North American migratory waterfowl, as well as 96 species of songbird.

This cropland expansion has wiped out about 138,000 nesting habitats for waterfowl, researchers estimate. These grasslands are also a rich habitat for the monarch butterfly – a flagship species for pollinator conservation and a key indicator of overall insect biodiversity. More than 200m milkweed plants, the caterpillar’s only food source, were probably destroyed by cropland expansion, making it one of the leading causes for the monarch’s national decline,

The extent of conversion of grassland in the US makes it a larger emission source than the destruction of the Brazilian Cerrado, according to research from 2019, About 90% of emissions from grassland conversion comes from carbon lost in the soil, which is released when the grassland is ploughed up.

The rate of clearing that we’re seeing on these grasslands is on par with things like tropical deforestation, but it often receives far less attention,” says Lark. Food crop production globally has increased by about 300% since 1970, despite the negative environmental impacts. Reducing food waste and eating less meat would help cut the amount of land needed for farming, while researchers say improved management of existing croplands and utilising what is already farmed as best as possible would reduce further expansion.

Lark concludes: “I think there’s a huge opportunity to re-envision our landscapes so that they’re not only providing incredible food production but also mitigating climate change and helping reduce the impacts of the biodiversity crisis by increasing habitats on agricultural land.” PW 2

What are the two main threats to the environment?

The delicate balance of biodiversity is now threatened. An important way to improve the state of our natural world is to learn more about the major threats to biodiversity. In 2019, scientists around the world confirmed that nature is declining at an alarming rate. There are five direct drivers of biodiversity loss:

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Habitat loss, which is the lead threat to biodiversity and contributes to the endangerment of over 80 percent of all species. Pollution, including the use of chemicals, fossil fuels and plastics, which disrupts the earth’s ecosystems, injuring species and changing their habits. Rapidly increasing climate change, which is changing growing patterns, food availability and migration patterns faster than ecosystems and species can adjust. Overexploitation, which is the over-harvesting of species faster than they can naturally reproduce. Invasive species, which are often introduced by human action and can threaten native species and their ecosystems.

Find out more about the importance of biodiversity and what you can do.

What is the biggest environmental treat today?

11. Food and Water Insecurity – Rising temperatures and unsustainable farming practices has resulted in the increasing threat of water and food insecurity and taking the mantle as one of the biggest environmental problems today. Globally, more than 68 billion tonnes of top-soil is eroded every year at a rate 100 times faster than it can naturally be replenished.

  1. Laden with biocides and fertiliser, the soil ends up in waterways where it contaminates drinking water and protected areas downstream.
  2. Furthermore, exposed and lifeless soil is more vulnerable to wind and water erosion due to lack of root and mycelium systems that hold it together.
  3. A key contributor to soil erosion is over-tilling: although it increases productivity in the short-term by mixing in surface nutrients (e.g.

fertiliser), tilling is physically destructive to the soil’s structure and in the long-term leads to soil compaction, loss of fertility and surface crust formation that worsens topsoil erosion. With the global population expected to reach 9 billion people by mid-century, the Food and Agriculture Organization of the United Nations (FAO) projects that global food demand may increase by 70% by 2050,

Around the world, more than 820 million people do not get enough to eat. The UN secretary-general António Guterres says, “Unless immediate action is taken, it is increasingly clear that there is an impending global food security emergency that could have long term impacts on hundreds of millions of adults and children.” He urged for countries to rethink their food systems and encouraged more sustainable farming practices.

In terms of water security, only 3% of the world’s water is fresh water, and two-thirds of that is tucked away in frozen glaciers or otherwise unavailable for our use. As a result, some 1.1 billion people worldwide lack access to water, and a total of 2.7 billion find water scarce for at least one month of the year.

Which is a 3 to environment?

The three types of environment are: Internal environment. External macro environment. External micro environment.

How do humans treat the environment?

Human Impacts on the Environment Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

Which is a threat of environment short answer?

Which of the following is a threat to the environment?A. Growing treesB. Growing populationC. Growing cropsD. None of these Answer Verified Hint: This threat results in depletion or exploitation of resources, global warming, extinction of wildlife, and China has also made a policy to control it.

Complete answer: Humans directly or indirectly are harming the environment. The changes in the biophysical environment, natural resources, and biodiversity are caused by humans. Global warming, ecological crisis, ocean acidification, environmental degradation, etc are certain examples of the changes. A state in which there are too many people, who consume so much is known as Human overpopulation.

It is also known as the Human population overshoot. The growing population results in an increase in births, a fall in mortality rates, and most importantly depletion or exploitation of resources. As the human population is increasing, the environment is being modified to fit or fulfill the needs of society.

Also, human overpopulation is resulting in pollution, deforestation (removal of the forest), overconsumption, overexploitation of resources, biodiversity loss, and rising temperature of the globe, etc. The growing population is also resulting in the destruction of habitat, extinction of wildlife.While talking about the other options, A.

Trees provide oxygen that we need to breathe and survive. It also reduces the problem of erosion, floods, and also provides food, shelter, or homes for many birds and mammals.C. To stay healthy, crops are the most essential thing. Also, fruits and vegetables improve the health of an individual.

  1. Thus the correct option is B.
  2. Note: The human population is expected to grow by two billion people by the year 2050.
  3. Our country has fifteen percent of the world’s population and it is a major obstacle in the development of the nation’s economy.
  4. Which of the following is a threat to the environment?A.

Growing treesB. Growing populationC. Growing cropsD. None of these

What are 3 environmental threats to biodiversity?

Chapter Hook – The northern spotted owl ( Strix occidentalis caurina ) is a western North American owl species that prefers large swaths of pristine old growth forests (that typically take 150-200 years to mature) for nesting. Unfortunately, most western forests have been regularly harvested for timber since around the establishment of the Forest Service in 1905. Figure \(\PageIndex \) Northern spotted owl perched in a tree. Image by USFS (licensed under CC-BY 2.0 ) Biodiversity loss refers to the reduction of biodiversity due to displacement or extinction of species. The loss of a particular individual species may seem unimportant to some, especially if it is not a charismatic species like the Bengal tiger or the bottlenose dolphin.

  1. However, biologists estimate that species extinctions are currently many times higher the normal, or background, rate seen previously in Earth’s history.
  2. This translates to the loss of tens of thousands of species within our lifetimes.
  3. This is likely to have dramatic effects on human welfare through the collapse of ecosystems.
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Loss of biodiversity may have reverberating consequences on ecosystems because of the complex interrelations among species. For example, the extinction of one species may cause the extinction of another. To measure biodiversity loss, scientists assess which species are at risk of extinction as well as survey ecosystem decline.

The core threat to biodiversity on the planet is the combination of human population growth and the resources used by that population. The human population requires resources to survive and grow, and many of those resources are being removed unsustainably from the environment. The five main threats to biodiversity are habitat loss, pollution, overexploitation, invasive species, and climate change.

Increased mobility and trade has resulted in the introduction of invasive species while the other threats are direct results of human population growth and resource use.

What are 5 environmental risks?

The 8 Environmental Factors That Can Impact Your Health – A number of specific environmental issues can impede human health and wellness. These issues include chemical pollution, air pollution, climate change, disease-causing microbes, lack of access to health care, poor infrastructure, and poor water quality.

What are 6 threats to ecosystems?

Below, we discuss six of the major threats to biodiversity: climate change, habitat loss and degradation, pollution, invasive species, over-exploitation and epidemics.

What are the types of threats?

Types of Threats – Threats can be classified into four different categories; direct, indirect, veiled, conditional.

A direct threat identifies a specific target and is delivered in a straightforward, clear, and explicit manner.

An indirect threat tends to be vague, unclear, and ambiguous. The plan, the intended victim, the motivation, and other aspects of the threat are masked or equivocal.

A veiled threat is one that strongly implies but does not specifically threaten violence.

A conditional threat is the type of threat often seen in extortion cases. It warns that a violent act will happen unless certain demands or terms are met.

What causes the most damage to the environment?

Fossil fuels – coal, oil and gas – are by far the largest contributor to global climate change, accounting for over 75 per cent of global greenhouse gas emissions and nearly 90 per cent of all carbon dioxide emissions. As greenhouse gas emissions blanket the Earth, they trap the sun’s heat. Generating power Generating electricity and heat by burning fossil fuels causes a large chunk of global emissions. Most electricity is still generated by burning coal, oil, or gas, which produces carbon dioxide and nitrous oxide – powerful greenhouse gases that blanket the Earth and trap the sun’s heat.

  1. Globally, a bit more than a quarter of electricity comes from wind, solar and other renewable sources which, as opposed to fossil fuels, emit little to no greenhouse gases or pollutants into the air.
  2. Manufacturing goods Manufacturing and industry produce emissions, mostly from burning fossil fuels to produce energy for making things like cement, iron, steel, electronics, plastics, clothes, and other goods.

Mining and other industrial processes also release gases, as does the construction industry. Machines used in the manufacturing process often run on coal, oil, or gas; and some materials, like plastics, are made from chemicals sourced from fossil fuels.

The manufacturing industry is one of the largest contributors to greenhouse gas emissions worldwide. Cutting down forests Cutting down forests to create farms or pastures, or for other reasons, causes emissions, since trees, when they are cut, release the carbon they have been storing. Each year approximately 12 million hectares of forest are destroyed.

Since forests absorb carbon dioxide, destroying them also limits nature’s ability to keep emissions out of the atmosphere. Deforestation, together with agriculture and other land use changes, is responsible for roughly a quarter of global greenhouse gas emissions.

  1. Using transportation Most cars, trucks, ships, and planes run on fossil fuels.
  2. That makes transportation a major contributor of greenhouse gases, especially carbon-dioxide emissions.
  3. Road vehicles account for the largest part, due to the combustion of petroleum-based products, like gasoline, in internal combustion engines.

But emissions from ships and planes continue to grow. Transport accounts for nearly one quarter of global energy-related carbon-dioxide emissions. And trends point to a significant increase in energy use for transport over the coming years. Producing food Producing food causes emissions of carbon dioxide, methane, and other greenhouse gases in various ways, including through deforestation and clearing of land for agriculture and grazing, digestion by cows and sheep, the production and use of fertilizers and manure for growing crops, and the use of energy to run farm equipment or fishing boats, usually with fossil fuels.

All this makes food production a major contributor to climate change. And greenhouse gas emissions also come from packaging and distributing food. Powering buildings Globally, residential and commercial buildings consume over half of all electricity. As they continue to draw on coal, oil, and natural gas for heating and cooling, they emit significant quantities of greenhouse gas emissions.

Growing energy demand for heating and cooling, with rising air-conditioner ownership, as well as increased electricity consumption for lighting, appliances, and connected devices, has contributed to a rise in energy-related carbon-dioxide emissions from buildings in recent years.

Consuming too much Your home and use of power, how you move around, what you eat and how much you throw away all contribute to greenhouse gas emissions. So does the consumption of goods such as clothing, electronics, and plastics. A large chunk of global greenhouse gas emissions are linked to private households.

Our lifestyles have a profound impact on our planet. The wealthiest bear the greatest responsibility: the richest 1 per cent of the global population combined account for more greenhouse gas emissions than the poorest 50 per cent. Based on various UN sources Hotter temperatures As greenhouse gas concentrations rise, so does the global surface temperature. The last decade, 2011-2020, is the warmest on record. Since the 1980s, each decade has been warmer than the previous one. Nearly all land areas are seeing more hot days and heat waves.

Higher temperatures increase heat-related illnesses and make working outdoors more difficult. Wildfires start more easily and spread more rapidly when conditions are hotter. Temperatures in the Arctic have warmed at least twice as fast as the global average. More severe storms Destructive storms have become more intense and more frequent in many regions.

As temperatures rise, more moisture evaporates, which exacerbates extreme rainfall and flooding, causing more destructive storms. The frequency and extent of tropical storms is also affected by the warming ocean. Cyclones, hurricanes, and typhoons feed on warm waters at the ocean surface.

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Such storms often destroy homes and communities, causing deaths and huge economic losses. Increased drought Climate change is changing water availability, making it scarcer in more regions. Global warming exacerbates water shortages in already water-stressed regions and is leading to an increased risk of agricultural droughts affecting crops, and ecological droughts increasing the vulnerability of ecosystems.

Droughts can also stir destructive sand and dust storms that can move billions of tons of sand across continents. Deserts are expanding, reducing land for growing food. Many people now face the threat of not having enough water on a regular basis. A warming, rising ocean The ocean soaks up most of the heat from global warming.

  1. The rate at which the ocean is warming strongly increased over the past two decades, across all depths of the ocean.
  2. As the ocean warms, its volume increases since water expands as it gets warmer.
  3. Melting ice sheets also cause sea levels to rise, threatening coastal and island communities.
  4. In addition, the ocean absorbs carbon dioxide, keeping it from the atmosphere.

But more carbon dioxide makes the ocean more acidic, which endangers marine life and coral reefs. Loss of species Climate change poses risks to the survival of species on land and in the ocean. These risks increase as temperatures climb. Exacerbated by climate change, the world is losing species at a rate 1,000 times greater than at any other time in recorded human history.

One million species are at risk of becoming extinct within the next few decades. Forest fires, extreme weather, and invasive pests and diseases are among many threats related to climate change. Some species will be able to relocate and survive, but others will not. Not enough food Changes in the climate and increases in extreme weather events are among the reasons behind a global rise in hunger and poor nutrition.

Fisheries, crops, and livestock may be destroyed or become less productive. With the ocean becoming more acidic, marine resources that feed billions of people are at risk. Changes in snow and ice cover in many Arctic regions have disrupted food supplies from herding, hunting, and fishing.

  1. Heat stress can diminish water and grasslands for grazing, causing declining crop yields and affecting livestock.
  2. More health risks Climate change is the single biggest health threat facing humanity.
  3. Climate impacts are already harming health, through air pollution, disease, extreme weather events, forced displacement, pressures on mental health, and increased hunger and poor nutrition in places where people cannot grow or find sufficient food.

Every year, environmental factors take the lives of around 13 million people. Changing weather patterns are expanding diseases, and extreme weather events increase deaths and make it difficult for health care systems to keep up. Poverty and displacement Climate change increases the factors that put and keep people in poverty.

  • Floods may sweep away urban slums, destroying homes and livelihoods.
  • Heat can make it difficult to work in outdoor jobs.
  • Water scarcity may affect crops.
  • Over the past decade (2010–2019), weather-related events displaced an estimated 23.1 million people on average each year, leaving many more vulnerable to poverty.

Most refugees come from countries that are most vulnerable and least ready to adapt to the impacts of climate change. Based on various UN sources

Which is a threat of environment short answer?

Which of the following is a threat to the environment?A. Growing treesB. Growing populationC. Growing cropsD. None of these Answer Verified Hint: This threat results in depletion or exploitation of resources, global warming, extinction of wildlife, and China has also made a policy to control it.

  • Complete answer: Humans directly or indirectly are harming the environment.
  • The changes in the biophysical environment, natural resources, and biodiversity are caused by humans.
  • Global warming, ecological crisis, ocean acidification, environmental degradation, etc are certain examples of the changes.
  • A state in which there are too many people, who consume so much is known as Human overpopulation.

It is also known as the Human population overshoot. The growing population results in an increase in births, a fall in mortality rates, and most importantly depletion or exploitation of resources. As the human population is increasing, the environment is being modified to fit or fulfill the needs of society.

  1. Also, human overpopulation is resulting in pollution, deforestation (removal of the forest), overconsumption, overexploitation of resources, biodiversity loss, and rising temperature of the globe, etc.
  2. The growing population is also resulting in the destruction of habitat, extinction of wildlife.While talking about the other options, A.

Trees provide oxygen that we need to breathe and survive. It also reduces the problem of erosion, floods, and also provides food, shelter, or homes for many birds and mammals.C. To stay healthy, crops are the most essential thing. Also, fruits and vegetables improve the health of an individual.

Thus the correct option is B. Note: The human population is expected to grow by two billion people by the year 2050. Our country has fifteen percent of the world’s population and it is a major obstacle in the development of the nation’s economy. : Which of the following is a threat to the environment?A.

Growing treesB. Growing populationC. Growing cropsD. None of these

What are the 5 major environmental problem?

Environmental Issues – Environmental issues are the harmful effects of human activities on the environment. These include pollution, overpopulation, waste disposal, climate change, global warming, the greenhouse effect, etc. Various environment protection programs are being practised at the individual, organizational and government levels with the aim of establishing a balance between man and the environment.