APES Notes 1.6 - Phosphorus Cycle

Which of the following is the main source of phosphorous?

• Human created fertilizers

• Weathering of rocks

• Sedimentation

• Excretion by animals

What is the main difference between the phosphorous and nitrogen cycles?

• P cycle is much faster than the N cycle

• P is not an essential plant nutrient like N is

• P has no gas phase while N does

• Fixation is the main source of P, while weathering is the main source of N

Which of the following is NOT a likely result of an increase in P levels in a body of water

• Rapid algae growth

• A decrease in dissolved oxygen levels

• Increase in the biodiversity of the ecosystem

• Increased bacterial decomposition of dead organic matter

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following is the slowest step in the P cycle?

• Weathering

• Assimilation

• Excretion

• Geological uplift

Tags

NGSS.MS-LS2-3

Which of the following is NOT a major phosphorous source?

• Weathering of rocks

• Synthetic fertilizers

• Excretion of animal waste

• Fixation by bacteria in the soil

How many sentences are required for a describe prompt? What are the basic requirements, according to your FRQ Task Verb Sheet?

Draw a line at the end of your notes and answer this practice FRQ in your EdPuzzle Notebook below the line.

Then give yourself a score out of 2 points using the Unit 1 mini-FRQ Scoring Guide on Google Classroom

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