The right option is; d. Runoff describes water movement and infiltration describes water storage.
Runoff is the portion of precipitation, irrigation or snow melt that flows over land as surface water instead of infiltrating or evaporating. Factors that influence runoff are permeability, amount of rainfall, slope and vegetation.
Infiltration is the process by which water or precipitation on the ground surface moves into the soil. Factors that determine the rate of infiltration include; soil type, topography of the land, amount of precipitation, vegetation, and pre-saturation levels.
<span>Answer B
A decrease in the intensity of the light would interrupt THE EMISSION of energy which would reduce the electrons diminish its brightness, which the emission of electrons by a material when it impinges on him an electromagnetic radiation (visible or ultraviolet light, generally included in the term other types of interaction between light and matter and leads to reduction</span>
Ok, I'm not fully sure but answer B sound right, so I think it's right