Nutrient Cycles

As a part of the water cycle, water from Earth's surface enters the clouds and finally falls back to the ground in the form of rain. What is the correct sequence of processes water undergoes?

• Evaporation, Condensation, Precipitation

• Precipitation, Condensation, Evaporation

• Condensation, Evaporation, Precipitation

• Evaporation, Precipitation, Condensation

The image shows various stages in the water cycle. During which stage does water flow back towards the sea as runoff?

• W

• X

• Y

• Z

What is precipitation?

• Sweat from our bodies on hot days

• Warm rain but not cold snow or sleet

• Gas that we use in furnaces or ovens

• Any form of water that falls from the sky

Condensation occurs when water vapor_____________.

• heats up and becomes liquid water

• cools off and becomes liquid water

• freezes and becomes ice

• rains on the land

The process when plants release water vapor from their leaves is called _____________.

• precipitation

• evaporation

• transpiration

• condensation

What step of the water cycle occurs when clouds become too heavy? 

• Condensation
• Runoff
• Precipitation
• Evaporation

What is the process during which water cools and turns from a gas to a liquid?

• Condensation
• Runoff
• Precipitation
• Evaporation

What step of the water cycle does this picture show?

• Condensation

• Runoff

• Precipitation

• Evaporation

Which best explains why runoff is important?

• It returns water to other locations on Earth

• It increases the chance of flooding

• It makes evaporation occur faster

• It increases condensation

What source of energy evaporates the most water from Earth’s surface?

• volcanoes
• the sun
• lightning
• wind