NS/Tech

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

a) Wind

b) Sun

c) Moon

d) Earth's core

• b) Sun

• c) moon

What process occurs when water changes from a liquid to a gas?

a) Condensation

b) Precipitation

c) Evaporation

d) Freezing

• c) Evaporation

• d) Freezing

Which of the following is NOT a stage in the water cycle?

a) Evaporation

b) Combustion

c) Precipitation

d) Condensation

• b) combustion

• Precipitation

When water vapor cools and forms tiny droplets, which process has occurred?

a) Evaporation

b) Condensation

c) Transpiration

d) Infiltration

• b) condensation

• Infiltration

Which stage of the water cycle is responsible for cloud formation?

a) Precipitation

b) Condensation

c) Runoff

d) Collection

• b) Condensation

• Runoff

Water from plants and trees enters the atmosphere through which process?

a) Precipitation

b) Transpiration

c) Runoff

d) Infiltration

• b) Transpiration

• Precipitation

What happens to precipitation that does not infiltrate the ground?

a) It evaporates immediately.

b) It becomes runoff and flows to rivers and oceans.

c) It turns into groundwater.

d) It stays suspended in the air.

• 
  b) It becomes runoff and flows to rivers and oceans.
  

• It evaporates immediately.

What term describes the movement of water through soil and rocks underground?

a) Condensation

b) Runoff

c) Groundwater flow

d) Transpiration

• c) Groundwater flow

• Transpiration

Which of these is an example of surface runoff?

a) Water flowing from mountains to rivers

b) Water being absorbed into the ground

c) Water vapor forming clouds

d) Ice melting into a lake

• 
  a) Water flowing from mountains to rivers
  

• Ice melting into a lake

Why is the water cycle important for life on Earth?

a) It provides food for humans.

b) It helps regulate Earth's temperature and supports ecosystems.

c) It prevents water pollution.

d) It eliminates all salt from water.

• b) It helps regulate Earth's temperature and supports ecosystems

• It eliminates all salt from water