Chapter 17 Study GuideThe Atmosphere
1. The two main gases that make up most of the air in earth's atmosphere are
___________________ and ____________________.
2. The force exerted on the earth's surface by the atmosphere is called ___________________.
3. The _________________ is the part of the atmosphere made up of charged atoms and molecules.
4. The layer of the atmosphere where most of the earth's weather occurs is the ________________________.
5. The gas released into the air when animals exhale is ____________________.
(Check answers in questions 6 through 13 by clicking on the answer you think is correct.)
6. The density
of air is greatest ________________________.
7. Air pressure at a given location
is caused by _______________________.
8. The direct
transfer of heat from particle to particle is ___________________.
9. In which
layer listed is air pressure the greatest? ____________________.
10. The most plentiful gas
in earth's early atmosphere was ____________________.
11. An increase in atmospheric
carbon dioxide might lead to _____________________.
12. All of these are associated with the thermosphere
except _____________________.
13. Most of the ultraviolet
radiation from the sun is _______________________.
14. _______________________ gas is taken in by animals and released by plants and algae.
15. The ozone layer is located in the _____________________________.
16. Solar winds affect the shape of the _______________________________.
17. The amount of ________________________ in the air can vary from 0 to 4 percent.
18. Cold air is more / less dense that warm air. _______________
19. ___________________________________ is caused by the trapping of heat near the earth's surface by certain gases. (2 words)
20. Energy can be transferred through empty space by _________________________.
21. Sunburn is caused by ___________________________ radiation.
22. Heat is transferred through a fluid by ____________________________.
Chapter 17 Study Guide (ANSWERS)
1. The two main gases that make up most of the air in earth's atmosphere are
___nitrogen____________ and ___oxygen__________.
2. The force exerted on the earth's surface by the atmosphere is called _air pressure___.
3. The _ionosphere__ is the part of the atmosphere made up of charged atoms and molecules.
4. The layer of the atmosphere where most of the earth's weather occurs is the troposphere_.
5. The gas released into the air when animals exhale is _Carbon dioxide___.
6. The density
of air is greatest (at sea level)
7. Air pressure at a given location
is caused by (the weight of the air above the location)
8. The direct
transfer of heat from particle to particle is (conduction)
9. In which
layer listed is air pressure the greatest? (stratosphere)
10. The most plentiful gas
in earth's early atmosphere was (carbon dioxide)
11. An increase in atmospheric
carbon dioxide might lead to (global warming)
12. All of these are associated with the thermosphere
except (the ozone layer)
13. Most of the ultraviolet
radiation from the sun is (absorbed by the
ozone layer)
14. ___Oxygen_ gas is taken in by animals and released by plants and algae.
15. The ozone layer is located in the _____stratosphere_____.
16. Solar winds affect the shape of the ____magnetosphere_____.
17. The amount of ___water vapor__ in the air can vary from 0 to 4 percent.
18. Cold air is more / less dense that warm air. ___more____
19. ____Global warming____ is caused by the trapping of heat near the earth's surface by certain gases. (2 words)
20. Energy can be transferred through empty space by __radiation__.
21. Sunburn is caused by ______ultraviolet_____ radiation.
22. Heat is transferred through a fluid by _____convection______.
