The right option is; a. soil degradation
Soil degradation most plausibly accounts for the reduction in corn yield.
Soil degradation is an environmental problem in which the condition or quality of soil is reduced due to its improper use usually for agricultural or industrial purposes. Soil degradation can reduce the physical, chemical and biological quality of soil. Soil degradation results in loss of organic matter, soil contamination, fertility decline, and soil acidity or alkalinity which can greatly affect agricultural productivity.
Answer:
Option (B)
Explanation:
The fault usually refers to the planar type of fractures that occurs in the earth's crust. Those faults in which the hanging-wall (H.W) block goes down with respect to the foot-wall (F.W) block is considered as the normal fault. This type of fault occurs due to the tensional force or extensional force.
Here, the rocks move in the opposite direction. This movement of blocks results in the release of a certain amount of energy that leads to the occurrence of shallow-focus earthquakes.
Thus, the correct answer is option (B).
The 2nd one. as it is the only way be that makes sense.
They are easier to carry.
They can be used for navigation within a city.
