Cycling of matter

Which of the following does not move through cycles?

• Nitrogen
• Phosphorus
• Carbon
• Sulfur

The process in which water vapor is released into the air through the stoma on the leaves of plants is called __________.

• Evaporation
• Transpiration
• Precipitation
• Condensation

Water moving over the land surface is called __________.

• rivers
• streams
• runoff
• None of the Above

The following are part of the carbon cycle EXCEPT _________.

• respiration
• precipitation
• decomposition
• photosynthesis

Decomposition releases __________ into the soil

• hydrogen
• oxygen
• nitrogen
• helium

Which of the following is NOT a "cycle"?

• Water
• Energy
• Nitrogen
• Phosphorus

When numerous food chains link to each other in an ecosystem, it is called a(n)

• food chain
• food web
• trophic pyramid
• food cluster

Decomposers break down detritus, also known as...

• dead organic matter
• inorganic matter
• living matter
• non-living matter

Only __% of energy gets passed on from one trophic level to the next

• 5%
• 10%
• 26%
• 90%

Plants rely heavily on ____ in the nitrogen cycle to incorporate nitrogen into organic compounds

• bacteria
• viruses
• fungi
• oxygen