A measure of the size of an effect in a population is called EFFECT SIZE.
The principle of effect size is used in statistical study of data obtained in experimental research. In research studies which compare different interventions, effect size refers to the magnitude of the difference between population groups that are been considered.
There are two main<span> types of physical weathering: Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart. Exfoliation occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion.</span>
The answer is adverse reactions