Global Warming

Q.

Why do we need to conserve forests?

Q.

What is global warming? Give its effects.

Q. Question 12
Which of the following is not a green house gas?

(a) Methane
(b) Carbon dioxide
(c) Carbon monoxide
(d) Ammonia

Q.

Whats the biggest contributor to global warming?

Q.

How do forests have a favorable effect on the climate?

Q.

What are the possible dangers of global warming?

Q.

Increase in which of the following gases cause global warming?

1. Carbon dioxide

2. Oxygen

3. Nitrogen

4. Carbon monoxide

Q. All of the following are greenhouse gases except_____________.
(a) Methane
(b) Carbon dioxide
(c) Ammonia

Q. All of these will directly or indirectly reduce the contribution to greenhouse gases except

1. Encouraging the use of public transportation
2. Walking
3. Biking or Using motorcycles
4. Increasing the cost of car ownership and fuel costs
5. Creating car-free zones

Q. Green house effect is caused by ________ and _________________ gases.

1. $C{O}_2$
2. $C{l}_2$ gas
3. Ozone
4. Both A and B

Q. All of the following are greenhouse gases except_____________.
(a) Methane
(b) Carbon dioxide
(c) Ammonia

Q. Out of the given alternatives, choose the one which can best replace the italicised word in the sentence without changing the meaning of the sentence.
The ascending temperature in many parts of the world confirms global warming which is an environmental hazard.

1. rising
2. falling
3. shooting
4. depleting

Q.

Global warming has occurred due to the rise of __ in the earth's atmosphere.

Q.

What are the possible dangers of global warming?

Q. $C{O}_2$ absorbs some of the ....... that radiates from the surface of Earth to space

1. ozone
2. heat
3. ultraviolet light
4. smog

Q. Regarding the assertion and reason, choose the correct option.
Assertion [A]: Deforestation is one main factor contributing to global warming.
Reason [R]: Besides CO₂, methane and CFCs are also greenhouse gases.

1. A is true but R is false
2. Both A and R are false
3. Both A and R are true and R is the correct explanation of A
4. Both A and R are true but R is not the correct explanation of A

Q. Given below is a pair of events I and II. You have to decide their nature of relationship. Assume that the given information is correct and final.
I Sea level is steadily rising
II Global Warming is a serious problem which the world is facing

1. I is the main cause and II is the main effect
2. I is effect but II is not the main cause
3. II is the main cause and I is the main effect
4. II is an effect but I is not the main cause