Unit 5 Review

What is the water cycle?

• the 3 forms of water
• the movement of water on, above, or below the surface of the Earth
• when water melts
• when clouds form

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

• evaporation
• condensation
• accumulation
• precipitation

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

• condensation
• evaporation
• sublimation
• transpiration

During which stage do clouds form?

• condensation
• evaporation
• precipitation

What is a layer of rock or sediment that holds water?

• glacier
• well
• aquifer
• natural spring

Combustion is another word for __________.

• Transportation
• Respiration
• Fossil Fuels
• Burning

Organisms that do not decompose can be buried and become what?

• water
• nutrients
• air
• fossil fuels

The diagram shows the flow of organic molecules through an ecosystem. What two processes are identified by the labels X and Y?

• X : Respiration
  Y : Predation
• X : Adaptation
  Y : Decomposition
• X : Fermentation
  Y : Nitrogen Fixation
• X : Decomposition
  Y : Respiration

The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?

• lower levels of ozone in the atmosphere
• lower levels of nitrogen in the atmosphere
• higher levels of carbon dioxide and other greenhouse gases in the atmosphere
• higher levels of oxygen in the atmosphere

How is the burning of fossil fuels related to global warming?

• Magic
• Fuels are hot
• Greenhouse effect
• Photosynthesis