Loss of fertility and loss of topsoil are ways soil can gain it’s value.

False

Explanation:

The loss of top soil is basically a great challenge in many region and it is been tagged as Erosion.This can in no way help a soil to regain it value and nutrient.

Likewise the loss of fertility through leaching and soil erosion can never add value to the soil.

The statement is given as False.

Explanation:

The topsoil contains the major component of the minerals which are the main reason of the fertility of the soil. The loss of the topsoil and fertility will result in the loss of the vegetation and agricultural capabilities of the soil which is not an increase in the value. It significantly reduced the value of the soil. So the given statement is false.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.