What is the main reason for environmental destruction Mcq?

The reasons are deforestation, pollution, killing, over exploitation etc. The most important among them is deforestation or destruction of their natural habitat because it will affect the species (flora and fauna) of complete area and not only the few organisms.

Which one of the following is the major environmental issues Mcq?

Which one of the following is the major environmental issue? Explanation: Use of resources is one of the important environmental issues.

Which one of the following is the major environmental issues?

Major current environmental issues may include climate change, pollution, environmental degradation, and resource depletion. The conservation movement lobbies for protection of endangered species and protection of any ecologically valuable natural areas, genetically modified foods and global warming.

Which is a threat to environment Mcq?

Answer: The main dangers worldwide are population growth and resource consumption, climate change and global warming, habitat conversion and urbanisation, invasive alien species, over-exploitation of natural resources and environmental degradation.

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Which is the most serious environmental effect posed by hazardous wastes Mcq?

Explanation: The most serious environmental effect posed by hazardous wastes is contamination of groundwater.

What is the main reason for the increase in water contamination incidents Mcq?

Explanation: Inorganic plant nutrients found in fertilizers. Run-off carries excess fertilizers into nearby water bodies, causing high levels of plant nutrients which promote the excessive growth of algae and other aquatic plants. 5.

What is the main reason for the increase in water contamination incidents?

Humans are the main cause of water pollution, which is triggered in many ways: by the dumping of industrial waste; due to temperature rise, that cause the alteration of water by reducing the oxygen in its composition; Or due to deforestation, which causes sediments and bacteria to appear under the soil and therefore …

What are the main causes of environmental pollution?

21.3. Causes of environmental pollution

  • Urbanization and industrialization. Since the era of industrial revolution, man has continued to introduce hazardous materials into the environment at an alarming rate. …
  • Mining and exploration. …
  • Agricultural activities. …
  • Burning of fossil fuels. …
  • Particulate matter. …
  • Plastics.

What causes environmental issues?

Global Warming and Climate Change

Pollution of air, land and water through excessive deforestation, industrialization and overfilling landfills which emits CO2 and adds to greenhouse gas emissions are all topmost causes of these environmental issues.

Why the environment is in danger?

Twenty-first century threats to our environment—including invasive species, diseases, pollution, and a warming climate—are putting wildlife populations at risk. … As our nation’s population continues to grow, our environment faces increasing strain.

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What are the major threats to the environment class 8?

Ans. Land degradation, landslides, soil erosion, desertification are the major threats to the environment because of the expansion of agriculture and constructional activities.

What are the major factors responsible for threat to the nature Class 9?

The major factors responsible for the threat to nature are as follows.

  • Fast growing human population.
  • Increase in consumption of natural resources because of population growth.
  • Pollution of air, water and environment due to dumping of factory waste and also household waste.

Which one of the following is not a threat to environment Mcq?

Growing plants is not a threat to environment.