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.
Answer: b. Runoff occurs over land and infiltration occurs underground.
Explanation:
Runoff and infilteration both are the phenomena which effect the fertility of the soil. A runoff can be defined as the flow of water on the surface of the earth. The water of runoff may come from rainwater, melting of the glacier ice, and irrigation. It removes the topsoil and subsoil layers. This phenomena effects the fertility of the soil because of the loss of surface minerals.The infilteration can be defined as the process of downward flow of water inside the soil. This leads to the leaching or removal of the inorganic and organic minerals from subsurface and deep layer of the soil.
On the basis of the above explanation, b. Runoff occurs over land and infiltration occurs underground. is the correct option.
Because these non native species can cause competition for the same food source as the native species thus making it harder for the native species to survive. Also the non native species could see the native species as food causing them to die out. As well as introducing new diseases that these native species don’t know how to defend themselves from
Eukaryotic cells do not have a nucleus. The nucleus is where DNA, your genetic material, is usually stored. Prokaryotic cells do not have a nucleus. The DNA just floats around the cell instead of staying in one designated area.