Global Warming

Q. Which of the following is a greenhouse gas?

1. Oxygen
2. Argon
3. Carbon dioxide
4. Nitrogen

Q.

Which of the following are the effects of global warming?

1. Melting of polar ice caps

2. Increase in energy consumption

3. Rise of sea level

4. All of these

Q. Name the gas which plays major role in global warming.

1. sulphur dioxide
2. carbon monoxide
3. hydrogen sulphide
4. carbon dioxide

Q.
What is/are the possible cause(s) for the above effect?

1. \N
2. Global Warming
3. Ozone Depletion
4. Acid Rain

Q.

What is greenhouse effect?

1. trapping of sun's heat energy by green house gases

2. release of sun's heat energy by green house gases

3. reradiating this energy in all directions

4. all of these.

Q.

Stephan comes across a headline in the newspaper stating 'Trees are cut down to construct the new apartment'. He was happy to know that the new apartments will be made in the outskirts of the city where they will get good ambience and a wide area to play. But he came to know that various people are opposing this project. He was confused after knowing this. Why would the people oppose this project?

1. They were trying to replicate "Chipko movement”.

2. They wanted to use the wood obtained by the trees for furniture.

3. The lack of trees allows a greater amount of greenhouse gases to persist in the atmosphere.

4. They want their children to play near those trees.

Q. With the passing time, wildlife extinction is being observed at higher rate. What could be the possible reasons for this?

1. Their eating habits
2. Migration of species
3. Habitat destruction
4. Global warming

Q.

The Earth has an average temperature of 33°C which makes life possible on Earth. This is due to:

1. deforestation
2. natural greenhouse effect
3. soil erosion
4. global warming

Q.

Which of the following gases is responsible for global warming?

1. Carbon dioxide

2. Carbon monoxide

3. Argon gas

4. Neon gas

Q.

20 (d) Replace the following with a word or phrase

increase in the temperature of the earths atmosphere

Q. Global warming results in the fast rise of the earth's temperature.

1. False
2. True

Q. 'Greenhouse effect' with respect to global warming refers to ______.

1. cooling and moist condition
2. warming effect
3. increased rainfall and greenery
4. desertification