Environmental Chemistry Questions

Q1: Define Environmental Chemistry.

Q2: Define Atmosphere. Discuss composition and layers of atmosphere

Q3: Define Pollution and also shed light on air pollution.

Q4: Discuss the major sources of air pollutants and their adverse effects on the environment and human health.

Q5: Explain various effects of air pollutants.

  1. What are pollutants?
  2. List some effects of sulphur dioxide on human beings.
  3. List some of the air pollutants
  1. Write the names of main pollutants in the air.
  2. Complete the following reactions.
  1. Write three human activities that are responsible for air pollution.
  2. Write three natural processes that are contributing in air pollution.
  3. List main sources of the following air pollutants.
    1. SO2
    2. CO
    3. NO2
  1. What percentage of the air is made up of nitrogen?
  2. Can you name two gases that make up less than 1% of the air but are still very Important?
  3. How does the carbon dioxide contribute to climate change?
  4. Why is carbon monoxide considered to be a toxic gas?
  5. What household and outdoor activities lead to the release of methane into the atmosphere?
  6. From where do oxides of nitrogen, which can cause acid rain, commonly originate? Ans: They commonly originate from vehicle exhaust, power plants, and industrial processes that burn fossil fuels.
  7. What is the main cause of increased levels of sulfur dioxide in the air?
  8. How does the presence of particulates in the air affect our health?
  9. Why are catalytic convertors important in vehicles?
  10. How do oxides of nitrogen contribute to the formation of acid rain?
  11. Describe how oxides of nitrogen can be removed from car exhaust.
  12. What is the chemical reaction that defines photosynthesis?
  13. How does long-term exposure to air pollutants affect respiratory health?
  14. In what ways can reducing emissions from vehicles improve air quality?
  15. What steps can industries take to minimize the release of sulphur dioxide?

Q6: Explain how greenhouse gases like carbon dioxide and methane contribute to global warming and climate change.

  1. Define global warming.
  2. List some effects of global warming.
  3. List some substances that are responsible for global warming.
  4. Establish the link between greenhouse effect and global warming.

Q7: Discuss in detail acid rain and its formation

Q8: Enlist the damaging effects of acid rain.

  1. Define acid rain.
  2. Write names of gases that causes acid rain. Ans: Sulfur dioxide (SO2) and nitrogen oxides (NOx)
  3. What is the effect of acid rain on iron and marble? Give balanced chemical equation.

Q9: What are catalytic converters?

Q10: Discuss strategies to reduce environmental problems.

Q11: Discuss main strategies to solve acid rain issues.

Q12: Define the term photosynthesis.

Q13: How can we reduce personal exposure to harmful pollutant?

Q14: Identify high-risk situations in life including those where long term exposure to these pollutants can lead to respiratory issues and reduction in quality and longevity of life.

  1. Define Global warming.
  2. What do most scientists believe is causing global warming?
  3. What is greenhouse gas?
  4. We need greenhouses gases why?
  5. Why are greenhouse gases now a problem?
  6. Name the two main greenhouse gases we add to the air through air activities?
  7. Give the main source for each gas you named in global warming?
  8. Explain why greenhouse gases are able to make Earth warmer?
  9. One impact of global warming could be rising sea levels. Give two reasons why global warming would cause sea levels to rise?
  10. Why rising sea levels a problem?
  11. Rising sea levels could increase coastal erosion. What is coastal erosion?
  12. Why might global warming cause water stress?
  13. In what ways could global warming affect (a) climate change (b) food production (c) wildlife?
  14. Give two reasons why climate change is likely to affect (a) food supplies (b) water supplies in many countries.
  15. Name the brown haze that forms over some cities in sunlight and the pollutants which give rise to it.
  16. Which pollutants come from petrol burned in car engines?
  17. Which pollutants come from the air itself? How do these form?
  18. Which pollutants result in acid rain?
  19. Natural gas (methane) is a fossil fuel. Give the word equation for the reaction that occurs when it burns in plenty of air.
  20. If methane burns in a poor supply of air, carbon monoxide will form. Explain why this gas is harmful?