ATMOSPHERE TEST #1 Name: _____________________
Review Sheet

Definition of atmosphere: __________________________________________________________

Gases in the atmosphere and what each is important for:

a. Nitrogen – most abundant gas

b. Oxygen – animal respiration

c. Carbon dioxide – plant photosynthesis, keeps earth warm

d. water vapor – humidity, clouds, rain

e. aerosols – condensation of clouds

Layers of the atmosphere and what makes each important:

a.

b.

c.

d.

e.


How does temperature change in each layer as altitude increases?

a. troposphere: the temperature decreases as altitude increases

b. stratosphere: the temperature increases as altitude increases


How does air density and air pressure change as altitude in the atmosphere increases?


Air density and pressure decrease as altitude increases.


Definition of air pressure: the force of air pushing down on you

What instrument measures air pressure? barometer.

What are the units of air pressure on this instrument? Inches and millibars

How does this instrument work?
If it is rising the air pressure is increasing and the weather will improve.

If it is sinking the air pressure is decreasing and the weather will get worse .

Definition of weather: The mix of events in the atmosphere each day.


Definition of climate: The average weather in an area over many years.

What is the major kind of air pollution? ____smog______________

What is the main cause of this type of pollution? _____cars burning fossil fuels___________

What main ingredient in smog is bad for humans and plants to breathe? _ozone___________

Explain the expression “Ozone…good up high, bad nearby”

Good in stratosphere where it protests us from UV rays.

Bad near ground as part of smog where we can breathe it.

What factors influence smog and increase ground level ozone…the bad kind?

1. Temperature

2. Wind

3. Cloud cover

4. Population

5. Increased use of cars and electronic devices?

Explain: Why does using electricity contribute to smog?




List five ways you can help reduce smog…(ground level ozone).

1.

2.

3.

4.

5.