c1quiz 1 click to start question 1 what is the approximate percentage of oxygen in earth’s modern...
TRANSCRIPT
Question 1
What is the approximate percentage of oxygen in Earth’s modern day atmosphere?
78% 50
9921%
Water Vapour
Question 2
Which gas has the largest percentage in Earth’s modern day atmosphere?
Nitrogen Carbon Dioxide
Oxygen
Question 3
Which gas made up the majority of the Earth’s early atmosphere?
Methane Hydrogen
Carbon Dioixde Sulphur Dioxide
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.
Question 5
• What is the approximate fraction of carbon dioxide currently found in the atmosphere?
1 / 2500 1 / 5000
1 / 10 0001 / 100
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
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
Question 9
• Which of the following gases are released by volcanoes?
Oxygen and Nitrogen
Carbon Dioxide and Hydrogen
Carbon Dioxide and Steam
Oxygen only
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