Importance of the atmosphere Worksheet
1. In space, no one can hear you scream, because there are not enough molecules for the sound waves
to travel through.
a. TRUE
b. FALSE
2. The atmosphere is a reservoir for water.
a. TRUE
b. FALSE
3. How does the atmosphere protect us from the Sun?
a. Ozone in the lower atmosphere absorbs all wavelengths of electromagnetic radiation from the Sun
b. Greenhouse gases in the atmosphere absorb solar radiation to block out the harmful rays
c. Greenhouse gases in the upper atmosphere absorb heat from the planet and block out harmful
radiation
d. Ozone in the upper atmosphere absorbs the highest energy ultraviolet radiation coming from the
Sun
4. The ozone molecule is made of
a. Two water molecules
b. Three oxygen atoms
c. One carbon dioxide molecule with a water molecule
d. Two oxygen atoms with one water molecule
Importance of the atmosphere Worksheet
5.________ uses oxygen and expels carbon dioxide.
a. Photosynthesis
b. Respiration
6. The atmosphere has currents that move cool air to warm places and warm air to cool places.
a. TRUE
b. FALSE
7. Without an atmosphere, Earth's temperatures would be frigid at night and scorching during the day.
a. TRUE
b. FALSE
8. The part of Earth's atmosphere that shields Earth from harmful ultraviolet radiation is called the
_____.
a. Ionic layer
b. Lithosphere
c. Protective layer
d. Ozone layer
Importance of the atmosphere Worksheet
9. Which gas of the atmosphere shields us from ultraviolet radiation?
a. Ozone
b. Hydrogen
c. Methane
d. Carbon dioxide
10. The atmosphere is composed of 78% __________ and 21% __________.
a. Carbon dioxide; oxygen
b.Oxygen; nitrogen
c. Nitrogen; carbon dioxide
d.Nitrogen; oxygen
11. Complete the sentence using one of the following words: Photosynthesis, Respiration, or Replication
“Plants need light energy, carbon dioxide, and water during the process of
__________________________”
12.
The layer of gases that surrounds a planet is known as the _______________
a. Biosphere
b. Atmosphere
c. None of the above
d. Hydrosphere
Importance of the atmosphere Worksheet
13. The atmosphere traps warmth like a blanket, keeping Earth’s temperature__________ which allows
for humans to exist
a. high
b. moderate
c. fluctuating from very high to very low
d. below freezing
14. What would happen, if there were no atmosphere?
a. Temperatures would be extremely hot all the time
b. Temperatures would be frigid all the time
c. None of the above
d. Temperatures would be frigid at night and scorching in the day
15. Photosynthesis helps plants create ___________________ from ___________________.
a. Food energy; solar energy
b. Solar energy; food energy
c. Solar energy; carbon dioxide gas
d. Carbon dioxide gas; solar energy
Importance of the atmosphere Worksheet
16. Without oxygen in the atmosphere, there would be
a. No animals
b. No plants
c. No plants or animals
d. No difference in life forms
17. The atmosphere is vital because it:
a. Traps heat from the Sun
b. Moderates temperatures
c. Protects us from UV rays
d. All of the above
18. What is the relationship between photosynthesis in plants and the respiration of animals?
a. Plants use carbon dioxide and produce oxygen; animals use oxygen and produce carbon dioxide
b. Plants use oxygen and produce carbon dioxide; animals use carbon dioxide and produce oxygen
c. Plants use nitrogen and produce water vapor; animals use water vapor and produce nitrogen
d. Plants use water vapor and produce nitrogen; animals use nitrogen and produce water vapor