Chapter 3: Phosphorus Cycle

Question 1

Does not include the

Answer 1

Atmosphere

Question 2

Most phosphorus is locked up in _____ which needs to erode before cycle continues

Answer 2

Rocks

Question 3

Limiting factor for ______ growth

Answer 3

Plant

Question 4

Used up by ________ and moved through food web

Answer 4

Producers

Question 5

In the water it can precipitate out of the soil and form

Answer 5

New phosphate rocks

Question 6

Human activity

Answer 6

Fertilizer
Detergent
Mining phosphate rocks