Question

Which of the above statements are helpful in controlling global warming?

• A. Both 1 and 2
• B. Only 1
• C. Both 2 and 3
• D. All 1, 2, and 3

Answer 1

The correct option is C Both 2 and 3

Global warming is caused due to an accelerated greenhouse effect in which excess emission of gases like ${\text{CO}}_2$, will trap the heat around the earth causing its temperature to rise.

• Using electric cars instead of those that need fossil fuels like petrol, can help in reducing greenhouse emissions.


• Renewable energy sources like solar, wind, and tidal emit minimum to no greenhouse gases. So, going for such alternative forms of energy helps us in saving the planet.

However, cutting down trees would only speed up the global warming, and hence, is not helpful in reducing it.