The answer to this question is phase. These three properties, amplitude, frequency and phase are basic properties of waves. Frequency refers to the number of cycles per second, amplitude refers to the strength, and phase is the position of the wave on the time axis.
Probably B) strenuous exercise. If not B then it's probably A. I don't know for sure though
The correct answer is C. Desert.
Desert area is likely to experience large amount of natural erosion.
Erosion occurs depending with the movement of ice, water or wind over a surface whereby it is known to occur on downward slope reason being the force of gravity.
Some of the causes of erosion include; gravity, water, and burrowing animals.
Erosion is known to occur when water or wind moves over soil, rocks, or sediment. Sometimes natural erosion benefits because it helps to have fertile soil.
In the experiment with plants being grown at different temperatures to see how it will affect a plant's growth, the control group is the plant being grown at room temperature. The experimental group includes the three plants being grown at temperatures greater than room temperature.
