Nitrogen Cycle

Front

What are the two things that can break the triple bond in N₂?

Back

Nitrogen Fixing Bacteria and Lightning

Front

How do animals get the nitrogen they need?

Back

From the food they eat

Front

What is the formula for atmospheric nitrogen?

Back

N₂

Front

Can plants and animals use nitrogen directly from the air?

Back

True

Front

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

Back

True

Front

How much of the atmosphere is composed of nitrogen gas?

Back

78%

Front

If the atmosphere is full of N₂, why can't we just get our nitrogen by breathing?

Back

We have no mechanism to break the triple bond of nitrogen between the atoms.

Front

What happens when organisms die and decay?

Back

Their nitrogen returns to the soil

Front

Nitrification happens in the ______
Options: Air, Soil, Ground Water, Plants

Back

Soil

Front

Which plant is an example of a legume?

Back

peanuts