Cycles

The step of the nitrogen cycle that is in red is called...

• Denitrification

• Nitrification

• Nitrogen Fixation

• Ammonification

The step of the nitrogen cycle that is in red is called...

• Denitrification

• Nitrification

• Nitrogen Fixation

• Ammonification

The step of the nitrogen cycle that is in red is called...

• Denitrification

• Nitrification

• Nitrogen Fixation

• Ammonification

Nitrogen fixation...

• animals eat the plants and other animals that contain nitrogen and release it through their waste

• Bacteria in the soil and lightning in the atmosphere “fix” the nitrogen

• Once in the ground, bacteria in the soil also nitrify the nitrogen

• plants absorb nitrogen through their roots and return it back to the atmosphere

Denitrification...

• animals eat the plants and other animals that contain nitrogen and release it through their waste

• Bacteria in the soil and lightning in the atmosphere “fix” the nitrogen

• nitrogen is released back into the atmosphere from the animal’s waste or decomposers

• plants absorb nitrogen through their roots and return it back to the atmosphere

Bacteria fix nitrogen from the atmosphere into a form plants can use.

• True

• False

How nitrogen is "fixed" into useable form for plants...

• through action of bacteria only
• through lightning only
• through action of bacteria & lightning
• through photosynthesis

This picture of the mirror shows an example of--

• precipitation

• transpiration

• evaporation

• condensation

This picture shows -

• evaporation

• condensation

• precipitation

• transpiration

Select the three main parts of the Water Cycle. 

• Precipitation

• Condensation

• Evaporation

• Ground Water