Question 1

Which of the following gases is the most common in our atmosphere?

Accepted Answer

Nitrogen

Answer

Carbon dioxide

Answer

Argon

Answer

Oxygen

Question 2

Which gas is responsible for the green house effect

Accepted Answer

Carbon dioxide

Answer

Nitrogen

Answer

Argon

Answer

Oxygen

Question 3

What is climate Change?

Accepted Answer

Regional weather change

Answer

Global cooling

Answer

Global warming

Question 4

Where did oxygen come from during the development of our atmosphere?

Accepted Answer

photosynthesis by plants and algae

Answer

Through the evolution of marine animals

Answer

Volcanic activity

Answer

Carbon dioxide dissolving in the ocean

Question 5

What happened to the water vapour as the Earth began to cool down

Accepted Answer

Formed Oceans

Answer

Reacted with Oxygen to form carbon dioxide

Answer

Formed ice

Answer

Evaporated into space

Question 6

How much oxygen approximately is found our present atmosphere?

Accepted Answer

21%

Answer

42%

Answer

78%

Answer

0.1%

Question 7

Why has the amount of nitrogen not changed much over the Earth's existence?

Accepted Answer

Nitrogen is an un-reactive gas

Answer

Nitrogen is reactive so is constantly used up.

Answer

Plants release and absorb equal amounts through photosynthesis

Answer

Animals release and absorb equal amounts through respiration

Question 8

what are the products (what you end with) of photosynthesis

Accepted Answer

Oxygen and Glucose

Answer

Oxygen and water

Answer

Methane and water

Answer

Carbon dioxide and water

Question 9

Which gas makes up  78% of our atmosphere?

Accepted Answer

Nitrogen

Answer

Carbon dioxide

Answer

Water

Answer

Oxygen

Question 10

Which of the following is way carbon dioxide was removed from our atmosphere

Accepted Answer

dissolved in the oceans

Answer

respiration by plants

Answer

escaped into space

Answer

formed the oceans

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