Have an account?
Skip to Content
Build your own quiz
Suggestions for you
16 questions
Show Answers
See Preview
- 1. Multiple Choice
Scientists think the first atmosphere was formed by ......
gases from volcanoes
gases from animals
gases from plants
gases from the sea
- 2. Multiple Choice
What organisms do scientists think evolved first?
Bacteria & algae
Fish & grass
Birds & trees
Humans & animals
- 3. Multiple Choice
What process could algae carry out to make oxygen?
Photosynthesis
Respiration
Digestion
Phototropism
- 4. Multiple Choice
Why do scientists think there was no life on earth at first?
There was not enough oxygen.
There was not enough nitrogen.
There was not enough carbon dioxide.
There was not enough methane.
- 5. Multiple Choice
As water vapour cools, what happens to it?
It condenses and becomes a liquid.
It evaporates and becomes a gas.
It condenses and becomes a gas.
It evaporates and becomes a liquid.
- 6. Multiple Choice
The atmosphere today contains about ....
78% nitrogen and 21% oxygen
78% oxygen and 21% nitrogen
78% carbon dioxide and 21% oxygen
78% nitrogen and 21% carbon dioxide
- 7. Multiple Choice
When plants die and are buried, they formed what?
In the absence of oxygen, crude oil
In the presence of oxygen, coal
In the presence of oxygen, crude oil
In the absence of oxygen, coal
- 8. Multiple Choice
The early atmosphere contained a lot more water vapour than the modern atmosphere does. Where did it go?
It condensed to form the oceans
It escaped into space
It was absorbed by plants
- 9. Multiple Choice
What biochemical process absorbs carbon dioxide from the atmosphere and replaces it with oxygen?
Photosynthesis
Respiration
Digestion
- 10. Multiple Choice
Which of the following is the correct word equation for photosynthesis?
carbon dioxide + water →
glucose + oxygen
glucose → carbon dioxide + ethanol
glucose + oxygen → carbon dioxide + water
- 11. Multiple Choice
Which process removed carbon dioxide from the atmosphere?
Formation of sedimentary rocks
Formation of igneous rocks
Formation of metamorphic rocks
- 12. Multiple Choice
Which of the following is NOT
a fossil fuel?
Hydrogen
Crude oil
Coal
- 13. Multiple Choice
How long does it take to form fossil fuels?
Millions of years
Thousands of years
Hundreds of years
- 14. Multiple Choice
Which of these gases come from erupting volcanoes?
water vapour and carbon dioxide
ethane and carbon monoxide
oxygen and sulphur dioxide
hydrogen and helium
- 15. Multiple Choice
The air we breathe is made mostly of:
argon
carbon dioxide
nitrogen
oxygen
- 16. Multiple Choice
What percentage of our modern atmosphere is made up of other gases such as argon, water vapour, and carbon dioxide?
1%
21%
78%
17%
- Answer choicesTagsAnswer choicesTags