Chapter 18 Science

Which gas is most important for understanding the processes that take place in the atmosphere?

• nitrogen

• oxygen

• carbon dioxide

• water vapor

During a change in state, energy is transferred in the form of

• motion

• heat

• moisture

• light

When a liquid absorbs energy and changes to a gas, what takes pace?

• condensation

• sublimination

• deposition

• evaporation

The formation of frost on a cold windowpane is an example of which of the following?

• sublimination

• condensation

• deposition

• transpiration

What does relative humidity indicate?

• how close air is to saturation

• the amount of heating needed for evaporation

• the amount of water vapor in the air

• the ratio of water vapor to CO2 in the air

When the temperature of air rises, the amount of water needed for saturation

• increases

• decreases

• stays the same

Relative humidity of a sealed flask of air can be changed by changing the air's temperature or by

• shining light on the flask

• adding or removing water vapor

• bringing the flask to a different latitude

• adding or removing particles of soil

When air expands, it

• cools down

• has more water vapor

• warms up

• becomes heavier

Which process produces rising air due to unequal heating of the Earth's surface?

• frontal wedging

• convergence

• orographic lifting

• localized convective lifting

When is air most likely to rise?

• when it is unstable

• when it is cooling

• when it is dry

• when it is stable