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Question 13 Marks
State four effects of global warming.
Answer
The effects of global warming on the life on earth is as below:
1. The variable changes in the climate in different parts of the world has created difficulty and forced the people and animals to migrate from one place to the other.
2. If has affected the blooming season of the different plants.
3. The climatic changes has shown the immediate effect on simple organism and plants.
4. It has affected the world's ecology.
5. It has increased the heat stroke deaths.
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Question 23 Marks
How can global warming can be reduced?
Answer
With increasing economic growth and population, energy consumption is increasing and hence this leads to global warming. To minimise global warming following three measures should be taken.
1. Internal combustion engines in vehicles should be replaced by electric battery vehicles to reduce carbon dioxide emission.
2. Reforestation and sustainable use of land should be encouraged. Forest habitats should be maintained.
3. Controlling population, through family planing, welfare reform and the empowerment of women. This will help in reducing population, then consumption for energy and hence will reduce global warming.
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[3 Mark Question Answer] - PHYSICS STD 9 Questions - Vidyadip