C1Quiz 1

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Question 1

What is the approximate percentage of oxygen in Earth’s modern day atmosphere?

78% 50

9921%

Wrong Answer!

Water Vapour

Question 2

Which gas has the largest percentage in Earth’s modern day atmosphere?

Nitrogen Carbon Dioxide

Oxygen

Wrong Answer!

Question 3

Which gas made up the majority of the Earth’s early atmosphere?

Methane Hydrogen

Carbon Dioixde Sulphur Dioxide

Wrong Answer!

Question 4

• Where is much of the gas that once made up the Earth’s early atmosphere now located?

It condensed to form large deposits of ‘dry ice’.

It has been pumped underground and trapped inside the Earth’s core.

It collected in the Earth’s upper atmosphere and compacted together.

It dissolved in oceans and was then taken up by marine organisms.

Wrong Answer!

Question 5

• What is the approximate fraction of carbon dioxide currently found in the atmosphere?

1 / 2500 1 / 5000

1 / 10 0001 / 100

Wrong Answer!

Question 6

• Which of the following activities is not a human activity that causes small changes to the atmosphere over time?

Deforestation Burning Fossil Fuels

Volcanic Eruptions

Farming

Wrong Answer!

Question 7

• Which one of the following processes was responsible for increasing the amount of oxygen in the atmosphere over time?

Respiration Photosynthesis

DeforestationBurning Fossil Fuels

Wrong Answer!

Question 8

• Which gas do plants take out of the atmosphere?

Nitrogen Oxygen

MethaneCarbon Dioxide

Wrong Answer!

Question 9

• Which of the following gases are released by volcanoes?

Oxygen and Nitrogen

Carbon Dioxide and Hydrogen

Carbon Dioxide and Steam

Oxygen only

Wrong Answer!

Question 10

Which of the following gases could be released when fossil fuels are burned?

Carbon Dioxide and Oxygen

Carbon Dioxide and Carbon Monoxide

Nitrogen and Oxygen

Ammonia and Nitrogen

Wrong Answer!

Congratulations!

• Well done!!!