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Atmosphere Composition Quiz

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Questions and Answers

What gas is the second most abundant in the atmosphere?

Oxygen (correct)

Argon

Carbon dioxide

Helium

Which gas makes up the largest percentage of the Earth's atmosphere?

Oxygen

Nitrogen (correct)

Argon

Carbon dioxide

What role does carbon dioxide play in the biosphere?

Source of oxygen for respiration

Primary constituent of the atmosphere

Essential for photosynthesis in plants (correct)

Incombustible gas

Which of the following components is NOT a major gas found in the atmosphere?

<p>Methane (C)</p> Signup and view all the answers

What percentage of the atmosphere is composed of argon?

<p>0.93% (C)</p> Signup and view all the answers

Flashcards

Atmosphere

The layer of gases surrounding the Earth, held in place by gravity.

Major Gases in the Atmosphere

The primary gases making up the atmosphere, comprising 99% of its volume.

Diluent

Substance that dilutes the concentration of another substance.

Nitrogen in the Atmosphere

Most abundant gas in the atmosphere, acting as a diluent and generally inert - it doesn't react easily.

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Carbon Dioxide in the Atmosphere

A key gas in the atmosphere that is used by plants for photosynthesis.

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Study Notes

Atmosphere Composition

The atmosphere is a gaseous envelope surrounding Earth, held in place by gravity
The atmosphere is essential for life on Earth, filtering harmful radiation and providing necessary gases
The atmosphere's height extends to about 29,000 km, but 97% is within 29 km of the surface
The atmosphere is a mixture of gases, water vapor, and particulates
99% of the atmosphere's gases are nitrogen (78%) and oxygen (21%)
Other gases include argon (0.93%), carbon dioxide (0.03%), neon (0.0018%), helium (0.0005%), ozone (0.00006%), hydrogen (0.00005%), krypton (trace), xenon (trace), and methane (trace)
Oxygen is vital for living organisms, used in respiration
Oxygen is essential in combustion reactions
Nitrogen is a diluting agent and is chemically inactive
Carbon dioxide is used by green plants in photosynthesis

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Description

Test your knowledge about the composition of Earth's atmosphere. This quiz covers the essential gases, their proportions, and the importance of these gases for life on Earth. Delve into the roles of nitrogen, oxygen, carbon dioxide, and other trace gases.