Greenhouse Effect

Q.

Carbon dioxide is called greenhouse gas because it is:

1. Transparent to both sunlight and heat

2. Used in the greenhouse to increase plant growth

3. Transparent to heat but traps sunlight

4. Transparent to sunlight but traps heat

Q.

Environment can be kept clean and green by using ___ energy.

Q.

Methane is not a green house gas.

1. True
2. False

Q.

Which of the following elements can be obtained by plants directly from the air?

1. Carbon
2. Nitrogen

3. Iron

4. Boron

Q.

Match the global warming activities given under column I with respective greenhouse gases produced under column II and select the right answer.

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

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

3. A=p, B=s, C=t, D=r

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

Q. ___ gas is 25 times more potent than carbon dioxide in warming the atmosphere.

Q.

The greenhouse effect is caused due to ozone layer depletion.

Q.

Which among the following are Greenhouse Gases?

1. Carbon dioxide
2. Methane
3. Nitrogen
4. Chlorofluorocarbons

Q. Regarding the assertion and reason, choose the correct option.
Assertion [A]: Greenhouse effect is due to a thick layer of CO₂.
Reason [R]: The glass panels of a greenhouse allow the sunlight to filter through but prevent heat from being re-radiated into outer space.

1. Both assertion and reason are true and the reason is the correct explanation for assertion.
2. Both reason and assertion are true but the reason is not the correct explanation of the assertion.
3. Both the reason and assertion are false.
4. Assertion is true but the reason is false.

Q. Given pie-diagram represents the relative contribution of various greenhouse gases to total global warming. Identify the gases P, Q, R and S.

1. p- $N_{2}O$, Q- ${CFC}_s$, R- ${CO}_2$, S-Methane
2. p- $N_{2}O$, Q-Methane, R- ${CFC}_s$, S- ${CO}_2$
3. P- ${CO}_2$, Q- $N_{2}O$, R- ${CFC}_s$, S- Methane
4. p- ${CO}_2$, Q- ${CFC}_s$, R- $N_{2}O$, S-Methane

Q.

Identify the correct pairs of gases and their corresponding sources.

1. (i) $C{O}_2$ - Vehicles,

   (ii) Methane, $C{H}_4$ - Excreta of all living organisms,

   (iii) Water vapour - Seawater,

   (iv) $O_2$ - Plants

2. (i) $C{O}_2$ - Vehicles, Methane,

   (ii) $C{H}_4$ - Seawater,

   (iii) Water vapour - Excreta of all living organisms,

   (iv) $O_2$ - Plants

3. (i) $C{O}_2$ - Excreta of all living organisms,

   (ii) Water vapour - Seawater,

   (iii) $O_2$ - Plants​,

   (iv) Methane, $C{H}_4$ - Vehicles

4. (i) Methane, $C{H}_4$ - Vehicles,

   (ii) Water vapour - Excreta of all living organisms,

   (iii) $O_2$ - Plants,

   (iv) $C{O}_2$ - Seawater

Q.

Which of the following pairs is mismatched?

1. Fossil fuel burning - release of carbon dioxide

2. Solar energy - the greenhouse effect

3. Biomass burning - release of carbon dioxide

4. Nuclear power - radioactive wastes

Q.

Which of the following pairs is mismatched?

1. Biomass burning - release of carbon dioxide

2. Solar energy - the greenhouse effect

3. Nuclear power - radioactive wastes

4. Fossil fuel burning - release of carbon dioxide

Q. In column I, a list of gases known to have a greenhouse effect is given. Relate them to their main source listed in column II.

	Column I		Column II
A.	Nitrous Oxide	1.	Secondary pollutant from car exhausts
B.	Chlorofluorocarbons (CFCs)	2.	Combustion of fossil fuels, wood
C.	Methane	3.	Refrigerators, aerosols, sprays
D.	Carbon dioxide	4.	Cattle excreta

1. A− 4, B − 5, C−1 , D −2, E−3
2. A− 2, B − 4, C−5 , D −1, E−3
3. A – 3, B − 4, C−5 , D −1, E−2
4. A− 5, B − 1, C−3 , D −4, E−2

Q.

Carbon dioxide is called greenhouse gas because it is:

1. Transparent to both sunlight and heat

2. Used in the greenhouse to increase plant growth

3. Transparent to sunlight but traps heat

4. Transparent to heat but traps sunlight

Q.

Match the greenhouse gases listed in column - II with their respective sources (activities from which they get released) in column - I.
$\begin{array}{cccc}& Column-IActivities& & Column-IIGreenhousegases\\ A& Combustionoffossilfuel& p& Carbondioxide\\ B& Swampandricefields& q& Ozone\\ C& Refrigeration& r& Nitrousoxide\\ D& Burningofbiomass& s& Methane\\ & & t& CF{C}_s\end{array}$

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

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

3. A=s, B=r, C=q, D=p

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