BIO XII 5.4
Chapter: ENVIRONMENTAL ISSUES
BIO XII 5.4.1
Q.1. Define pollution. What are major types of pollution.
Q.2. What is the objective of Environment Protection Act 1986?
Q.3. Draw a simple diagram of electrostatic precipitator. Briefly explain how does it work?
Q.4. How will you make a scrubber to control SO2 gas in the air?
Q.5. Name any two expensive metals used in catalytic converters in vehicles? What is the function of catalytic converter.
BIO XII 5.4.2
Q.6. Enlist any four adverse effects of noise pollution on human health?
Q.7. Define BOD. What does the BOD level of a water sample indicate?
Q.8. Define biomagnification. Give one example with the help of an aquatic food chain.
Q.9. What do you mean by cultural or accelerated eutrophication? Write the sequence of changes which leads to the death of a lake by this.
Q.10. Which plant is known as terror of Bengal and why?
BIO XII 5.4.3
Q.11. What is algal bloom? How it is harmful for animals and human beings?
Q.13. What is polyblend? Where it is being utilised?
Q.14. What do you mean by e-waste? What happens to e-waste in developing countries?
Q.15. How e-waste is a health hazard in developing countries?
BIO XII 5.4.4
Q.16. Define global warming? Name the radiation responsible for global warming.
Q.17. How global warming will affect the climate of earth?
Q.18. With the help of pie chart show the major GHGs and the extent to which these are responsible for global warming.
Q.19. What is Ozone hole? Why it is harmful?
Q.20. Which type of UV rays are harmful for living organisms?
BIO XII 5.4.5
Q.21. Expand CFCs. Where are these used? How these are harmful?
Q.22. What are effects of UV-B on human health?
Q.23. What was the purpose of Montreal protocol?
Q.24. What are units in which thickness of ozone is measured?
Q25. name three important accidents/ disasters which occurred due to leakage of nuclear waste.
No comments:
Post a Comment