Understanding the Water Cycle

What is the primary role of oceans, lakes, and rivers in the water cycle?

• They are the main sources of precipitation.

• They store vast amounts of liquid water.

• They convert water vapor into clouds.

• They are the primary locations for transpiration.

How does water vapor transform into clouds?

• By heating up and expanding.

• By mixing with dust particles.

• By evaporating from plant leaves.

• By cooling and condensing into droplets.

What happens to water after it falls as precipitation?

• It remains suspended in the air.

• It immediately evaporates back into the atmosphere.

• It either runs off into bodies of water or infiltrates the ground.

• It turns into fossil water.

What is the significance of 'fossil water'?

• It is water that has been trapped underground for thousands of years.

• It is water that is found only in oceans.

• It is water that has been frozen for millions of years.

• It is water that evaporates quickly.

During the last ice age, how did ocean levels compare to today?

• They were 400 feet higher.

• They were 400 feet lower.

• They were the same as today.

• They fluctuated significantly every year.