Biogeochemical Cycles

The process of transpiration occurs from which of these organisms?

• Fungi

• Plants

• Animals

• Bacteria

This is a process where liquid water changes into water vapor

• Evaporation

• Precipitation

• Transpiration

• Condensation

It refers to the subsequent movement of water through subsurface soil pores until it reaches the water table.

• Infiltration

• Percolation

• Precipitation

• Groundwater

This is a process where water vapor cools and turns into liquid droplets

• Evaporation

• Precipitation

• Transpiration

• Condensation

When precipitation falls on the ground, some of it moves downwards into cracks, joints, and pores in the soil. The entry of water into the subsurface is called what?

• Infiltration

• Percolation

• Precipitation

• Groundwater

In the carbon-oxygen cycle, which of the following generates oxygen and utilizes carbon dioxide?

• Producers

• Consumers

• Chemicals

• Gases

This process in the nitrogen cycle refers to converting nitrates into nitrogen gas.

• Nitrogen Fixation

• Nitrification

• Ammonification

• Denitrification

This is a process in the nitrogen cycle in which ammonia is converted into nitrite and then to nitrate with the help of bacteria

• Nitrogen Fixation

• Nitrification

• Ammonification

• Denitrification

This is a process in the nitrogen cycle in which bacteria convert the nitrogen gas to ammonia

• Nitrogen Fixation

• Nitrification

• Ammonification

• Denitrification

When an organism excretes waste or dies, the nitrogen in its tissues is in the form of organic nitrogen (e.g. amino acids, DNA). Various fungi and prokaryotes then decompose the tissue and release inorganic nitrogen back into the ecosystem as ammonia in the process known as what?

• Nitrogen Fixation

• Nitrification

• Ammonification

• Denitrification