L.3 Earth's Water QUIZ

What is the main reason the amount of water on Earth remains fairly constant?

• It evaporates into space

• It is constantly replenished by comets

• It moves in the water cycle

• It is absorbed by plants.

Salt water covers much of the Earth's surface. Although there is only a small amount of _______ on Earth, it is necessary to sustain life.

• saltwater

• freshwater

• ice

• vapor

What is the main component of the Earth's hydrosphere?

• Freshwater

• Saltwater

• Ice

• Clouds

The regular movement of water from the oceans to the air to the land and back to the oceans is called the ______.

• Water Cycle

• Hydrosphere

• Evaporation

• Precipitation

What is the source of energy that drives the water cycle?

• The moon

• The sun

• The wind

• The ocean

Water on Earth is naturally recycled through the ______.

• carbon cycle

• nitrogen cycle

• water cycle

• oxygen cycle

Which process in the water cycle involves water vapor cooling and changing into liquid droplets?

• Evaporation

• Condensation

• Precipitation

• Infiltration

In the water cycle, _______ is the process where water from the surface enters the soil.

• Evaporation

• Condensation

• Infiltration

• Precipitation

What is evaporation?

• The process of water turning into ice

• The process of water changing into vapor or gas due to the sun's energy

• The process of water being absorbed by plants

• The process of water flowing in rivers.

Evaporation occurs when the sun's energy causes water to change into ______.

• Ice

• Liquid

• Vapor or gas

• Solid