Impact of Global Warming

Q. Wetlands and oceans release a large amount of methane into the atmosphere. What is the relative contribution of methane to total global warming?

1. 20%
2. 90%
3. 57%
4. 75%

Q. Which of the following can happen as a result of global warming?

1. Destruction of coral reefs
2. Volcanic eruptions
3. Earthquakes
4. Deforestation

Q. State whether true or false:
Melting of ice caps is a normal phenomenon.

1. True
2. False

Q.

Match the global environmental issues given in column I with the respective effects given under column II and choose the right answer.

1. A= s, B=r, C=t, D=q

2. A=r, B=s, C=t, D=q

3. A=q, B=s, c=t, D=p

4. A=p, B=s, C=t, D=q

Q. Regarding the assertion and reason, choose the correct answer.
Assertion [A]: Global warming reduces pH levels in the oceans.
Reason [R]: Carbon dioxide dissolves in water to form carbonic acid.

1. Both A and R are true, and R explains A
2. A is true and R is false
3. Both A and R are false
4. Both A and R are true, but R does not explain A

Q.

If global warming continued, which of the following organisms would face relatively more severe threat?

1. 4-6 µg/100 ml

2. 10 µg/100 ml

3. 20 µg/100 ml

4. 30 µg/100 ml

Q.

Over the last 18, 000 years or so, global temperature has risen by

1. 2⁰C

2. 4⁰C

3. 6⁰C

4. 7⁰C

Q. Global warming can be can be controlled by:

1. Reducing deforestation, cutting down use of fossil fuel
2. Reducing reforestation, increasing the use of fossil fuel
3. Increasing deforestation slowing down the growth of human population
4. Increasing deforestation, reducing efficiency of energy usage

Q. The UN conference of parties on climate change in the year 2012 was held at:

1. Warsaw
2. Durban
3. Lima
4. Doha

Q.

Discuss the causes and effects of global warming. What measures need to be taken to control global warming ?