Local officials are concerned that agricultural fields at site B are increasing sedimentation in the river because of soil eroding from the fields. They hire an environmental consulting company to perform a study to determine if this is true. The company marks out two one-hectare plots at point B and point C in the diagram. The characteristics of the land in both plots are identical except that plot B is covered by agricultural fields and plot C is covered by undisturbed forest. Rain gauges are set up at the up-slope edge of the plots, and devices that collect eroded soil are set up along the down-slope edge of the plots. The environmental consultants hypothesize that more soil will be eroded from plot B than from plot C. Data are collected at the rain gauges and soil-collection devices at the end of each month for a year.

(i) Identify the dependent variable in the study.

In the above example, the soil erosion is a dependent factor because it is dependent on the amount of forestation and fields are present in the plots. As plot c has less forestation, soil erosion is less whereas plot B has fields inside which causes and increase in the soil erosion and river sedimentation.

topeadeniran2 topeadeniran2 · Answer 2 · 2021-10-15T13:35:54+02:00

The dependent variable in the study is soil erosion.

It should be noted that in a study, the dependent variable is the variable that is dependent and doesn't change. It's what the researcher wants to know.

The dependent variable doesn't change. In this case, the amount of forestation in the area has an influence on soil erosion. Therefore, the soil erosion, in this case is constant.

In conclusion, the dependent variable is soil erosion.

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