9.1 The Hydrologic Cycle

Question 1

Groundwater

Answer 1

Water in Earth’s crust that is in the zone of saturation, meaning that most pore spaces are filled with water.

Question 2

Hydrologic cycle

Answer 2

The continuous circulation of Earth’s water supply, characterized by the movement of water between the oceans, atmosphere, and continents. Also called the water cycle.

Question 3

Infiltration

Answer 3

The seeping of water on Earth’s surface into soil or rocks.

Question 4

Runoff

Answer 4

Precipitation that does not evaporate or infiltrate, but runs over Earth’s surface into streams.

Question 5

Transpiration

Answer 5

The process by which plants lose water vapor directly to Earth’s atmosphere.