Human activities impacting the phosphorus cycle

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Question

1. Which of these is an example of a non-point source of water pollution?

A pipe from a paper factory pouring bleach into a river

A car mechanic shop pouring oil into a ditch outside the shop

A boat on a river leaking gasoline into the river

Fertilizers on a 2000-acre farm entering the groundwater

2. How are human activities impacting the phosphorus cycle?

Humans are cutting down trees at a faster rate than in the past.

Phosphate from cleaning products gets into the water supply.

Humans are burning more fossil fuels like coal and oil.

3. Which of the following statements is true regarding the nitrogen cycle?

Plants and animals are able to directly use atmospheric nitrogen (N2).

All plants contain root nodules that allow them to use atmospheric nitrogen.

Bacteria convert atmospheric nitrogen (N2) into more useful forms of nitrogen.

Nitrogen remains in the atmosphere because living organisms do not need nitrogen to survive.

Reference no: EM133514463

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