Greenhouse Effect

Q.

Question 9
Why is the damage to the ozone layer a cause for concern? What steps are being taken to limit this damage?

Q.

How can we prevent the greenhouse effect?

Q.

Which of the following is not a greenhouse gas?

1. Water vapours

2. Methane

3. Ammonia

4. Carbon dioxide

Q.

Which of the following are true for greenhouse effect?

1. It is an atmospheric phenomenon
2. Percentage of green house gases increases in the atmosphere
3. Average temperature across the globe is increased
4. Air pollution increases as a result of green house effect

Q. Carbon dioxide is one of the greenhouse gases and an increase in the carbon dioxide content in the atmosphere would cause more heat to be retained by the atmosphere and lead to global warming.

1. True
2. False

Q.

Since the industrial revolution, the percentage of carbon dioxide in the atmosphere is said to have

1. Remained same

2. Doubled

3. Reduced

4. Halved

Q. Which of the following are the consequences of global warming?

1. Climate change
2. Rise in sea levels
3. Uneven rainfall
4. Severe drought and flood

Q.

List any three human activities which would lead to an increase in the carbon dioxide content of the air.

Q.

What are the disadvantages of the greenhouse effect?

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Question 12
Which of the following is not a greenhouse gas?

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

Q.

A motor car, with its glass totally closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why?

Q.

Name the major green house gas responsible for causing global warming.

Q. Choose the correct statements regarding greenhouse effect from the following.

1. Carbon dioxide is a greenhouse gas.
2. Greenhouse effect leads to global warming.
3. Greenhouse effect helps in releasing heat from the Earth's atmosphere.
4. Oxygen and hydrogen are greenhouse gases.

Q.

The gases which are responsible for a phenomenon known as the greenhouse effect are called as ___ .

Q.

How is carbon dioxide concentration of atmosphere rising ?

Q.

What is global warming? Explain any two harmful effects of global warming.

Q. List any three human activities which would lead to an increase in the carbon dioxide content of air.

Q. Which of the following human activities has led to global warming?

1. Combustion
2. Deforestation
3. Agriculture
4. Mining

Q.

What is green house?

Q.

Name the gases that are called greenhouse gases.

Q.

What are the possible dangers of global warming?

Q. Choose the correct statements regarding greenhouse effect from the following.

1. Carbon dioxide is a greenhouse gas.
2. Greenhouse effect leads to global warming.
3. Greenhouse effect helps in releasing heat from the Earth's atmosphere.
4. Oxygen and hydrogen are greenhouse gases.

Q. Greenhouse gases cause global warming.

1. True
2. False

Q.

Which of the following is/are responsible for the alarming rate of environmental degradation?

1. Ozone layer depletion

2. Greenhouse effect

3. Global warming

4. All of these

Q.

Question 4
What is the greenhouse effect?

Q.

Smog is the thick fog layer in the atmosphere.

1. True
2. False

Q.

Are greenhouse gases always harmful?

Q.

How serious is global warming?

Q. Question 3
List any three human activities which would lead to an increase in the carbon dioxide content of air.

Q. The atmosphere keeps the average temperature of the earth fairly steady during the day.

1. False
2. True