Phosphorus cycle

What is the phosphorus cycle?

• the process in which phosphorus is created

• the process by which phosphorus moves through the lithosphere, hydrosphere, and biosphere

• the process in which phosphorus desintegrates

• the process in which phosphorus kills people

Tags

NGSS.MS-LS2-3

What is this process essential for?

• nothing

• plant growth

• animal and plant growth

• animal growth

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

The phosphorus cycle is a slow process

• True

• False

What is the main source of phosphorus?

• plants

• rocks

• humans

• fungi

How is phosphorus extracted from rocks?

• it does not get extracted

• through plants

• through photosyntesis

• through weathering

How do animals absorb phosphorus?

• the phosphorus makes it way to freshwater and animals drink it

• they inhale it

• they eat plants that absorb the phosphorus from the water

• they absorb it from other animals

Tags

NGSS.MS-LS2-3

which is the most afected ecosystem?

• aquatic

• grassland

• forest

• taiga

Humans have had a significant impact on the phosphorus cycle due to human activities, what are this activities?

• the distribution of food products

• the use of fertilizer

• artificial eutrophication

• all of the above

Tags

NGSS.MS-LS2-1

decomposition results in the return of phosphorus back to the environment via...

• water

• soil

• water & soil

• clouds

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

which step of the cycle is repeated when the cycle ends?

• step 1

• step 2

• step 3

• no steps are repeated