Nutrients and Plant Health

Nutrients and Plant Health

Multiple Choice

How do animals get the nitrogen they need?

• From the air they breathe

• From the water they drink

• From the food they eat

• From the sun

Multiple Choice

Organisms that need nitrogen to survive.

• only plants

• only animals

• only bacteria

• all living things

Multiple Choice

The process in which nitrogen circulates and is recycled is called

• The nitrogen cycle

• The carbon cycle

• The water cycle

• The phosphorus cycle

Multiple Choice

Bacteria does not use up a lot of oxygen

• TRUE

• FALSE

Multiple Choice

What happens in Eutrophication?

• A massive die-off of organisms due to low oxygen.

• An net increase in oxygen.

• A changing of a land biome from fertilizer.

Multiple Choice

What is the original cause of eutrophication?

• Too many predators

• Too many herbivores

• Excess fertilizer

• Too much oxygen