JEE (Based on NTA Guidelines-IIT Engg.) Mains Chemistry Coaching Programs
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Biology Class 12 NCERT Solutions: Chapter 15 Biodiversity and Conservation Part 3
Q.9 What measures, as an individual, you would take to reduce environmental pollution?
Answer:
The following initiatives can be taken to prevent environmental pollution:
- Measures for preventing Air pollution
- Planting more trees
- Use of clean and renewable energy sources such as CNG and bio-fuels
- Reducing the use of fossil fuels
- Use of catalytic converters in automobiles
- Measures for preventing water pollution
- Optimizing the use of water
- Using kitchen waste water in gardening and other household purposes
- Measures for controlling Noise pollution
- Avoid burning crackers on Diwali
- Plantation of more trees
- Measures for decreasing solid waste generation
- Segregation of waste
- Recycling and reuse of plastic and paper
- Composting of biodegradable kitchen waste
- Reducing the use of plastics
Q.10 Can you think of a situation where we deliberately want to make a species extinct? How would you justify it?
Answer:
- Yes, there are various kinds of parasites and disease-causing microbes that we deliberately want to eradicate from the Earth.
- Since these micro-organisms are harmful to human beings, scientists are working hard to fight against them.
- Scientists have been able to eliminate small pox virus from the world through the use of vaccinations.
- This shows that humans deliberately want to make these species extinct. Several other eradication programmes such as polio and Hepatitis B vaccinations are aimed to eliminate these disease-causing microbes.