ESS
Grade-9
Easy
Question
Greenhouse gases are so-called because _________.
- They prevents heat waves from escaping from the earth's surface
- They are grown in greenhouses
- They are used to warm plant growth chambers
- They contribute to the maintenance of atmospheric oxygen and carbon dioxide balance
Hint:
Greenhouse gases cause greenhouse effect
The correct answer is: They prevents heat waves from escaping from the earth's surface
Greenhouse gases are so called due to the fact that they trap heat and do not allow it to escape similar to that of greenhouses that allow only sunlight to enter but not escape the greenhouse
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Reason: Increase in CO2 level leads to decrease in Earth’s temperature.
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What is the change between the greenhouse effect and global warming?
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Match the following
| Greenhouse gas |
Contribution to greenhouse effect (%) |
| 1. Carbon dioxide |
a. 6% |
| 2. Nitrous oxide |
b. 14% |
| 3. Methane |
c. 20% |
| 4. Carbon fluorocarbon |
d. 60% |
Match the following
| Greenhouse gas |
Contribution to greenhouse effect (%) |
| 1. Carbon dioxide |
a. 6% |
| 2. Nitrous oxide |
b. 14% |
| 3. Methane |
c. 20% |
| 4. Carbon fluorocarbon |
d. 60% |
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__________is mainly responsible for greenhouse effect.
__________is mainly responsible for greenhouse effect.
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Greenhouse effect is because of ______________.
Greenhouse effect is because of ______________.
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___________is not a greenhouse gas.
___________is not a greenhouse gas.
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If global warming continues, the organism that may face a very serious threat is________.
If global warming continues, the organism that may face a very serious threat is________.
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