A wave.
Scientists now recognize that light can behave as both a particle and a wave.
D! because when you record something you will probably analyze the results and those are two big KEY components of an Experiment! <span />
Weathering of the rock and sedimentation are decomposition processes. Through time, the minerals in the rocks soften due to pressure and heat. So, they crumble down and reduce in terms of size. Once they do, they become sand or part of the soil. So, the answer is A.
