Ecology Concept 2

In the water cycle, the sun provides

• energy for water to evaporate from oceans, lakes and rivers.
• water for evaporation to happen. 
• energy to produce electricity. 
• water for condensation to happen. 

During which stage do clouds form?

• condensation
• evaporation
• precipitation

What is it called when plants give off water vapor as a waste product?

• condensation
• evaporation
• sublimation
• transpiration

Which of the following are types of freshwater that can be used by people?

Select all that are true.

• groundwater

• ice caps and glaciers

• oceans

• rivers

• lakes

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

Snow, sleet, hail, and rain are all examples of  ________________. 

• evaporation
• condensation
• accumulation
• precipitation

When water _________, dew forms.

• Melts
• Evaporates
• Condenses
• Precipitates

Plants using water, carbon dioxide, and energy to make food.

• evaporation

• photosynthesis

• water cycle

• transpiration

All of the carbon in existence is continually recycled in the carbon cycle

• True
• False

Which of the following removes carbon from the atmosphere?

• Combustion
• Respiration
• Photosynthesis
• Death