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KatRina [158]
2 years ago
10

4. (7 points) Anthropogenic impacts on element cycles a. List three major modifications of anthropogenic activities on the carbo

n cycle. b. List two major impacts of anthropogenic activities on the nitrogen cycle c. List two major impacts of anthropogenic activities on the phosphorus cycle
Geography
1 answer:
gizmo_the_mogwai [7]2 years ago
3 0

<u>1. Three major modifications of anthropogenic activities on the carbon cycle:</u>

  • Level of atmospheric carbon dioxide has increased causing global warming because of burning of fossil fuels.
  • Carbon is also emitted in other forms like methane by activities like oil gas leak.
  • There is a reduction in level of oxygen.

<u>2. Impact on nitrogen cycle:</u>

  • Burning of fossil fuels has increased the level of atmospheric nitrogen leading to change in nutrient balance in trees.
  • Release of nitric acid which results in smog and acid rain Impact on phosphorus cycle.

<u>3.Two major impacts of anthropogenic activities on the phosphorus cycle</u>

  • Increase in the amount of phosphorus by use of fertilizers which affect the fertility of soil.
  • Untreated phosphates can turn into run off and flowing into-ocean leading to dead zones.
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