Cycles

1. The process of plants losing water through their leaves is called ____.

• condensation

• transpiration

• evaporation

• exhaling

2. What is the only process that removes carbon from the atmosphere?

• combustion

• photosynthesis

• respiration

• decomposition

3. Where is carbon stored in the environment?

• fossil fuels

• Calcium carbonate (shells and bones)

• wood of tree

• all of the above

4.

A particular golf course is using large amounts of nitrogen fertilizer. What process could move this nitrogen into a local stream?

• nitrogen fixation

• ammonification

• runoff and leaching

• fertilization

5. What converts nitrogen into a useable form for plants and animals?

• Factory

• bacteria

• fungi

• rain

7. What is the largest reservoir for water?

• glaciers

• atmosphere

• rocks and minerals

• ocean

7. Carbon dioxide is added to the atmosphere by

• burning fossil fuels

• decomposing organic matter

• cellular respiration

• all of the above

8. In an ecosystem, what happens to the atoms of certain chemical elements, such as carbon, oxygen, and nitrogen?

• They move into and out of living systems.

• They move out of living systems and do not return.

• They are only found in abiotic factors.

• They move into living systems and remain there.

9. The carbon in coal, oil, and natural gas came from

• the combustion(burning) of fossil fuels

• carbon-fixing bacteria in swamp soil

• carbon dioxide dissolved in ocean water

• the remains of dead organisms

10. The water cycle is driven by

• water

• precipitation

• earth's rotation

• sun