ESS
Grade-9
Easy
Question
Assertion: Methane is a part of greenhouse gases that contributes to approximately 20% of global warming.
Reason: The use of multi-point fuel injection engines in automobiles has reduced the amount of methane in exhausts.
- Both Assertion and reason are true, and reason is the correct explanation of assertion.
- Both Assertion and reason are true, but reason is not the correct explanation of assertion.
- Assertion is true, but reason is false.
- Both Assertion and reason are false.
Hint:
Methane is a major greenhouse gas that contributes to global warming due to the way it is made up of
The correct answer is: Both Assertion and reason are true, but reason is not the correct explanation of assertion.
The reason is false because methane is a two element compound and has three atoms in total due to which it traps the infrared radiation that reflects from Earth and scatters it all around the Earth due to its structure
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Statement I: The global atmosphere is currently warming.
Statement II: The depletion of the stratospheric ozone layer has increased the amount of ultraviolet radiation reaching the earth.
Statement I: The global atmosphere is currently warming.
Statement II: The depletion of the stratospheric ozone layer has increased the amount of ultraviolet radiation reaching the earth.
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Match the following.
| 1. CH4, CO2, CFC |
a. Hydrocarbon |
| 2. Methane |
b. Major component of climate change |
| 3. Nitrogen |
c. Ozone depletion |
| 4. Carbon fluorocarbon |
d. Most available gas |
Match the following.
| 1. CH4, CO2, CFC |
a. Hydrocarbon |
| 2. Methane |
b. Major component of climate change |
| 3. Nitrogen |
c. Ozone depletion |
| 4. Carbon fluorocarbon |
d. Most available gas |
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Which of the following statements is INCORRECT?
Which of the following statements is INCORRECT?
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Which of the following is the most likely way to help slow the greenhouse effect?
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Statement 1: The greenhouse effect is caused by a thick layer of carbon dioxide in the atmosphere.
Statement 2: The glass panels of a greenhouse allow sunlight to pass through while preventing heat from being re-radiated into space.
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Statement 2: The glass panels of a greenhouse allow sunlight to pass through while preventing heat from being re-radiated into space.
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Reason (R) Green plants' chlorophyll causes the greenhouse effect.
ESSGrade-9
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Read the following statements.
Select the strongest evidence for climate change.
1. A colder than normal winter.
2. A warmer than normal summer.
3. A pattern of severe storms affecting the major cities in winter season.
4. A form of rising frequency and intensity of storms over many years.
Read the following statements.
Select the strongest evidence for climate change.
1. A colder than normal winter.
2. A warmer than normal summer.
3. A pattern of severe storms affecting the major cities in winter season.
4. A form of rising frequency and intensity of storms over many years.
ESSGrade-9
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Greenhouse gases are so-called because _________.
Greenhouse gases are so-called because _________.
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Pick odd one out.
Pick odd one out.
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Though greenhouse effect is natural but still today’s climate change has become a serious problem. Why?
Though greenhouse effect is natural but still today’s climate change has become a serious problem. Why?
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What will happen to the climate, if we stop burning of fossil fuels today?
What will happen to the climate, if we stop burning of fossil fuels today?
ESSGrade-9
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The normal temperature of the Earth would have been_____________ if greenhouse gases were not present in the atmosphere.
The normal temperature of the Earth would have been_____________ if greenhouse gases were not present in the atmosphere.
ESSGrade-9
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Global warming can be under control _____________.
Global warming can be under control _____________.
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Assertion: CO2 is a major greenhouse gas.
Reason: Increase in CO2 level leads to decrease in Earth’s temperature.
Assertion: CO2 is a major greenhouse gas.
Reason: Increase in CO2 level leads to decrease in Earth’s temperature.
ESSGrade-9
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Climate model is used to forecast____________.
Climate model is used to forecast____________.
ESSGrade-9
