Whether fluctuating rapidly or slowly, environmental forces are always . a. static b. weak c. controversial d. dynamic

Option (D)

Explanation:

Environment refers to all the living and non-living components that surround us. There occur various processes such as precipitation, evaporation, weathering and erosion, deposition, and the processes that are associated with the various cycles such as geochemical cycle, nitrogen cycle, carbon cycle, phosphorous cycle and so on.

These processes occur in all the regions on earth and at different rates, and they are comprised of energy that is constantly in the flow from one region to another. These environmental changes and the forces that are involved in it are dynamic in nature.

Thus, the correct answer is option (D).

voluntary muscles are controlled by the cerebellum.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.