Weather And Climate - Section 1 - The Air Around You
13 Questions
| Total Attempts: 81
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Questions and Answers
- 1.Oxygen is used to __________________________________________________________________.
- A.
Light candles or breathe.
- B.
Blow things up and eat
- C.
Fill you with energy and cook
- 2.Earth's atmosphere is made up of __________, oxygen, water vapor, __________, and particles of liquids and solids.
- A.
Candy and Helium Helium and Neon
- B.
Protons and Electrons
- C.
Nitrogen and Carbon Dioxide
- 3.Nitrogen makes up _____% of the air. Oxygen makes up _____% of the air. The other _____% are all other gases.
- A.
27, 52, 21
- B.
78, 21, 1
- C.
89, 10, 1
- 4.Each nitrogen molecule consists of _____ nitrogen atoms.
- A.
1
- B.
8
- C.
2
- 5.Plants and animals take __________ directly from the air and use it to release energy.
- A.
Neon
- B.
Oxygen
- C.
Argon
- 6.Most oxygen molecules have _____ oxygen atoms.
- A.
2
- B.
6
- C.
3
- 7.When fuels such as coal and gaoline are burned, they give off __________ as a waste product.
- A.
Nitrogen
- B.
Oxygen
- C.
Carbon Dioxide
- 8.Each water molecule contains _____ hydrogen atoms and _____ oxygen atom.
- A.
2, 1
- B.
7, 0
- C.
5, 3
- 9.The amount of water vapor __________ from place to place and from time to time.
- A.
Varies
- B.
Increases
- C.
Reduces
- 10.Clouds form when when water vapor __________ out of the air to form tiny droplets of liquid.
- A.
Runs
- B.
Condenses
- C.
Smoke down
- 11.Pure _____ only contains gases.
- A.
Air
- B.
Water
- C.
Both A and B
- 12.Earth's atmosphere makes conditions on Earth suitable for living things by containing __________ and other livin things you need to survive.
- A.
Oxygen
- B.
Nitrogen
- C.
Hydrogen
- 13.Earth's atmosphere protects living things from dangerous __________ from the sun.
- A.
UV Rays
- B.
Radiation
- C.
Brightness
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