The cardiac cycle is the performance of the human heart from the ending of one heartbeat to the beginning of the next heartbeat.It consists of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, following a period of robust contraction and pumping of blood, dubbed systole.
People are naturally going to live near clean water sources, that way it's easier to survive, so people are more likely to live near or in an oasis than in a hot dry area like a desert.
Answer: The answer is D) A comparison of physiologic densities and arithmetic densities helps geographers understand
the capacity of land to yield food for the total population
Explanation:
Energy production/acid rain<span>, nuclear power/waste, </span>air pollution<span>/climate, heavy metals, pesticides, water </span>pollution<span>, solid waste, and unforeseen accidents.</span>
