Unit 2 Test Review- Energy Flow/Cycles

Which process takes Carbon Dioxide from the air and converts it into a form of carbon used by living things?

• Precipitation
• Photosynthesis
• Respiration
• Bioremdiation

When nitrogen gas is turned in to a form that plants and animals can use is called 

• Combustion
• Photosynthesis
• Decomposition
• Nitrogen Fixation

Carbon dioxide is added to the atmosphere by

• Burning fossil fuels 
• Cellular respiration
• Decomposing organic matter
• All answers are correct

The nitrogen found in the atmosphere is not in a form that plants or animals can use.  What converts it into a usable form?

• Bacteria
• Photosynthesis
• Decomposition of organisms
• Fungi

When water leaves a plant through small openings called stomata

• Precipitation
• Condensation
• Transpiration
• Perspiration

Which nutrient is not cycled through the atmosphere?

• carbon
• nitrogen
• phosphorous
• water

Which of the following cycles do humans impact by the runoff of fertilizers, which are responsible for algal blooms, as the algae die and decompose, bacteria use up the oxygen, causing fish kills.

• Carbon and Nitrogen
• Sulfur and Nitrogen
• Nitrogen and Phosphorus
• Sulfur and Phosphorus

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

• combustion
• cellular respiration
• photosynthesis
• decomposition

Organisms that play a role in the nitrogen cycle

• only plants
• only animals
• only bacteria
• plants, animals, & bacteria

Organism that breaks down dead plants & animals and releases nitrogen back into atmosphere

• bacteria
• plants
• animals
• producers