Ch.7 Practice Test

Plants use water, carbon dioxide, and energy to make food in a process called __________.

• transpiration

• photosynthesis

• condensation

• evaporation

The process by which water falls to Earth as rain, snow, hail, or sleet is called __________.

• evaporation

• condensation

• precipitation

• transpiration

In the process of __________, water molecules at the surface of a liquid absorb enough energy to change to a gas called water vapor.

• condensation

• precipitation

• evaporation

• photosynthesis

In the process of __________, water vapor in air cools and becomes water droplets that clump around particles in air to form clouds.

• condensation

• precipitation

• evaporation

• transpiration

Plants give off water vapor through their leaves in a process called __________.

• photosynthesis

• transpiration

• condensation

• evaporation

About 97 percent of water on Earth is found in __________ and salt lakes.

• rivers

• oceans

• glaciers

• ponds

More freshwater exists as __________ than is found in all of Earth’s rivers and lakes.

• groundwater

• rain

• clouds

• ice

• vapor

The water cycle is driven by energy from the sun and __________.

• wind

• gravity

• clouds

• rain

The place in which an organism lives and obtains the things it needs to survive is its __________.

• ecosystem

• habitat

• environment

• niche

Most of Greenland is covered by fresh water that is __________.

• liquid

• vapor

• ice

• rain