More people move to mdcs bc of pull factors. they leave ldcs bc of push factors.
Answer:
D). Turbidity, because a decrease in water clarity would indicate and increase in soil erosion.
Explanation:
The last option most aptly describes the direct effect of soil erosion i.e. 'turbidity' which would assist the students in discovering the impact produced by the construction project built on the river. The turbidity is characterized as the 'unit of measuring the transparency of a fluid or the state of being unclear and lesser sediments being disturbed' which <u>causes a significant fall in clarity of the water which signals that there has been a rise in erosion of soil after the construction of the project</u>. Thus, <u>option D</u> is the correct answer.
Natural environment has the ability to gather some pollutants yet if too much then the environment could no longer handle it. A leaky sewage can pollute an aquifer with I. arsenic as the contaminant. Arsenic is a metalloid existing in the Earth's crush. Exposure is natural yet can be aggravated by the human activities.
