quiz on carbon, nitrogen and water cycle

Which elements are in fertilizer?

• Nitrogen and Oxygen

• Phosphorous and Hydrogen

• Nitrogen and Phosphorous

True or False: Humans and animals release carbon dioxide into the air during photosynthesis and respiration.

• True
• False 

True or False: All of the carbon in existence is continually recycled in the carbon cycle.

• True
• False

Where does the carbon come from that plants use?

• Animals
• Water
• Air
• Connecticut

An underground layer of rocks or sand that can hold groundwater.

• watershed
• levee
• aquifer
• erosion

This is part of nucleic acids, ATP, and helps form animals' bones and teeth.

• Nitrogen
• Carbon
• Water
• Phosphorous

The conversion of ammonium to nitrate is called what?

• nitrification
• renitrification
• denitrification
• unnitrification

The conversion of nitrate to nitrogen gas is called what?

• nitrification
• renitrification
• denitrification
• unnitrification

What is it called when water vapor cools and changes into a liquid?

• condensation
• respiration
• precipitation
• evaporation

Which of the following is NOT a stage of the nitrogen cycle?

• organisms breathe in nitrogen gas
• organisms release nitrogen compounds via waste or decomposition
• bacteria convert unusable nitrogen to usable nitrogen
• plants absorb nitrogen compounds from the soil