What is the greenhouse effect

The effect caused by carbon dioxide methane and other gases absorbing thermal radiation

The removal of all gases from the atmosphere

Class 9 Chemistry · Chapter 10 · Test 4

Global Warming

25 MCQs covering the greenhouse effect global warming the role of carbon dioxide and methane absorption of thermal radiation reduction of heat loss to space and major effects of climate change.

MCQs

25 questions · 20 min · 25 marks

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Sample questions

The first 5 of 25. Try each one, then tap to see the answer.

Question 1
What is the greenhouse effect
- AThe effect caused by carbon dioxide methane and other gases absorbing thermal radiation
- BThe removal of all gases from the atmosphere
- CThe cooling of Earth by oxygen
- DThe formation of acid rain
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Answer: A
Greenhouse gases absorb thermal radiation and reduce the loss of heat to space.
Question 2
Which of the following is a greenhouse gas mentioned in the chapter
- ACarbon dioxide
- BNitrogen
- COxygen
- DHelium
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Answer: A
Carbon dioxide is one of the greenhouse gases discussed in the chapter.
Question 3
Which other greenhouse gas is specifically mentioned in the chapter
- AMethane
- BOxygen
- CNitrogen
- DArgon
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Answer: A
Methane is identified as another greenhouse gas.
Question 4
What type of radiation from the Sun passes through greenhouse gases to heat the Earth's surface
- AShort wave radiation
- BLong wave radiation only
- CUltraviolet radiation only
- DRadio waves
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Answer: A
The chapter states that the Sun emits short wave radiation which passes through greenhouse gases and heats Earth's surface.
Question 5
What type of radiation is emitted by the hot surface of Earth
- ALong wave radiation
- BShort wave radiation only
- CVisible light only
- DRadio waves only
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Answer: A
The hot Earth's surface emits long wave radiation.

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