1. CHAPTER 3 LESSON 2
SYSTEM INTERACTIONS

2. 3.2 INFORMATION

4. B. WEATHER
Most changes that take place in the atmosphere take place in the troposphere.

5. B. WEATHER
The state of the atmosphere at a particular time and place.

6. B. AIR TEMPERATURE
The average amount of energy produced by the motion of air molecules.

7. B. AIR PRESSURE
The force exerted by air molecules in all directions.

9. B. WIND
The movement of air caused by differences in air pressure.

13. B. HUMIDITY
The amount of water vapor in a given volume of air.

14. B. HUMIDITY
Clouds and precipitation are more likely when humidity is high.

15. B. CLIMATE
The average weather pattern for a region over a long period of time.

16. B. CLIMATE

18. B. RAIN SHADOW
Mountains can affect the amount of precipitation an area receives by causing the rain-shadow effect.

22. B. OCEAN CURRENTS
Wind blowing the ocean causes surface currents in the water that flow like rivers,

23. B. OCEAN CURRENTS
moving the thermal energy in water from place to place