5 Written Questions

1. Gases, such as carbon dioxide and methane, that absorb and give off infrared radiation as part of the greenhouse effect. (p. 24)
2. Rain that has become more acidic than normal due to pollution. (p. 70)
3. The horizontal movement of air caused by differences in air pressure. (p. 47)
4. The distance above sea level. (p. 10)
5. n. A series of events or actions that repeat themselves regularly; a physical and/or chemical process in which one material continually changes locations and/or forms. Examples include the water cycle, the carbon cycle, and the rock cycle. v. To move through a repeating series of events or actions.

5 Matching Questions

1. dew point
2. hail
3. air pressure
4. condensation
5. particulates

1. a Tiny particles or droplets, such as dust, dirt, and pollen, that are mixed in with air. (p. 28)
2. b Layered lumps or balls of ice that fall from cumulonimbus clouds. (p. 68)
3. c The force of air molecules pushing on an area. (p. 43)
4. d The temperature at which air with a given amount of water vapor will reach saturation. (p. 58)
5. e The process by which a gas changes into a liquid. (p. 56)

5 Multiple Choice Questions

1. An instrument that measures air pressure in the atmosphere. (p. 46)
   1. barometer
   2. weather
   3. atmosphere
   4. ozone
2. -The outer layer of gases of a large body in space, such as a planet or star; the mixture of gases that surrounds the solid Earth; one of the four parts of the Earth system. (p. 9)
   1. barometer
   2. weather
   3. smog
   4. atmosphere
3. The transfer of energy from place to place by the motion of heated gas or liquid; in Earth's mantle, convection is thought to transfer energy by the motion of solid rock, which when under great heat and pressure can move like a liquid. (p. 19)
   1. radiation
   2. convection
   3. conduction
   4. condensation
4. Rain that freezes when it hits the ground or another surface and coats the surface with ice. (p. 68)
   1. precipitation
   2. acid rain
   3. freezing rain
   4. dew point
5. Radiation of higher frequencies than visible light, which can cause sunburn and other types of damage. (p. 23)
   1. saturation
   2. ultraviolet radiation
   3. precipitation
   4. radiation

5 True/False Questions

1. density → A measure of the amount of matter packed into a unit volume; the density of an object is equal to its mass divided by its volume. (p. 10)

   True        False

2. ozone → A gas molecule that consists of three oxygen atoms. (p. 23)

   True        False

3. monsoon → The combination of smoke and fog; a type of air pollution that occurs when sunlight causes unburnt fuels, fumes, and other gases to react chemically, often seen as a brownish haze. (p. 28)

   True        False

4. Coriolis effect → The process by which certain gases in a planet's atmosphere absorb and emit infrared radiation, resulting in an increase in surface temperature. (p. 24)

   True        False

5. relative humidity → The comparison of the amount of water vapor in air with the maximum amount of water vapor that can be present in air at that temperature. (p. 58)

   True        False