Global biogeochemical cycles are critical to life, most notably those of water, oxygen, carbon, nitrogen and phosphorus. 1  The nitrogen cycle is the transformation of nitrogen and nitrogen-containing compounds in nature. 2  The water cycle, is the continuous movement of water on, above, and below the surface of the Earth.
Blunted affect refers to a reduction in the intensity of an individual's emotional response. The emotional response of an individual with blunted affect is a lot weaker than one would expect in similar circumstances.
Flat affect is a condition in which a person does not display emotions to the degree that other members of his or her culture would normally exhibit. It is used loosely to mean a dampening of these emotions, but clinically, it is usually reserved for more serious cases where patients may appear nearly inanimate or lacking emotional function.