Global Warming

Q.

What are the harmful effects of burning fossil fuels?

Q.

Which of the following pairs of gases is mainly responsible for green house effect?

1. Carbon dioxide and Methane

2. Ozone and Ammonia

3. Oxygen and Nitrogen

4. Nitrogen and Sulphur dioxide

Q.

Which of the following statement is true regarding greenhouse effect?

1. Carbon monoxide and oxygen are greenhouse gases

2. Radiation that enters the atmosphere is trapped by carbon dioxide

3. Greenhouse effect happens only with plants grown in “glasshouses” in relatively cold regions

4. Greenhouse effect causes global climate change

Q.

Which of the following gases cause the greenhouse effect?

1. Hydrogen

2. Nitrogen

3. Oxygen

4. Carbon dioxide

Q.

What is global warming? What are the likely harmful effects of global warming?

Q.

Describe how the delicate balance between oxygen and carbon dioxide is maintained in the atmosphere. Why is this balance in danger? What steps do we need to take to maintain this balance?

Q. Which of the following is NOT an adverse effect of global warming?

1. Melting of glaciers
2. Increase in the average temperature
3. Adverse effect on rainfall
4. Earthquakes
   

Q. Which of the following is not responsible for causing global warming?

1. Carbon dioxide
2. Methane
3. Jet planes
4. Ozone layer

Q.

What steps should be taken to balance carbon dioxide in the atmosphere ?

Q. Which of the following is not a potential adverse effect of global warming?

1. more extreme weather patterns
2. sea level rise
3. a retreat of glaciers
4. an increase of UVB radiations

Q.

(a) State two ways by which carbon dioxide is removed from atmosphere.

Q.

What are the harmful effects of burning fossil fuels?

Q.

Which of the following shows the greenhouse effect?

1. Ultraviolet rays

2. Infrared rays

3. X – rays

4. None of these

Q. ________ is an agreement signed by different countries to reduce the emission of greenhouse gases.

1. Pollution protocol
2. Kyoto act
3. Kyoto protocol
4. Pollution act

Q.

Which gases are responsible for global warming?

Q.

Which of the following is the main cause of global warming ?

(a) nitrogen dioxide

(b) sulphur dioxide

(c) carbon dioxide

(d) ozone

Q. Global warming leads to a rise in the sea level causing floods in the coastal areas. One of the main reasons of global warming is:

1. Combustion of fuels releases carbon monoxide which causes a decrease in the temperature.
2. Combustion of fuels releases sulphur dioxide which causes an increase in the temperature.
3. Combustion of fuels releases unburnt carbon particles which causes a decrease in the temperature.
4. Combustion of fuels releases carbon dioxide which causes an increase in temperature.

Q.

The Kyoto Protocol is associated with one of the following. This one is:

(a) reduction in the use of chlorofluorocarbans

(b) reduction in the emissiion of greenhouse gases

(c) reduction in the cutting of forest trees

(d) reduction in pollution of fresh water sources

Q.

What is global warming ? Name the gas whose increasing percentage in air is leading to global warming. State a harmful effect which can be caused by global warming.

Q.

Write the sources of methane.

Q.

Why is water vapour called greenhouse gas?

Q.

Earth is heated by a part of reflected radiation (from the surface) is trapped by the atmosphere.This phenomenon is called _________.

1. Air pollution

2. Green Gas effect

3. Green House effect

4. Red House effect

Q. The trapping of the sun's heat in the lower atmosphere of Earth, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface is known as

1. Greenhouse effect
2. Global warming
3. Ozone depletion
4. Tyndall effect

Q. What is global warming and greenhouse effect

Q. Mention three factors which are responsible for the destruction of forests. [3 MARKS]

Q. Give some effects of global warming.

Q.

What do you understand by greenhouse gases?

Q.

Both greenhouse effect and global warming are the same phenomena.

1. True

2. False

Q. Ozone layer protects the earth from which rays?

1. X-rays
2. Infra red rays
3. Cosmic rays
4. UV rays

Q. Which of the following facts about global warming is true?

1. Average temperature of earth increases
2. Oceans are losing volume because global warming evaporates water
3. Ice caps melt because global warming happens only at the poles
4. Earthquakes happen because the plates are heated by global warming