The quantity of water in the water table can change rapidly depending on the rate of extraction. As the level of water decreases in the aquifer, there is less available water to be pumped. If the rate of potential groundwater recharge is less than the rate of extraction, the water table will be too low for access.
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Answer:
Does Every Cell in the Human Body Contain the Same DNA? With few exceptions, all cells in a person's body have the same DNA and genes. As cells divide and grow different genes are expressed, resulting in different cell types.
Explanation:
This is an experiment where the researcher manipulates one variable, and control/randomizes the rest of the variables. It has a control group, the subjects have been randomly assigned between the groups, and the researcher only tests one effect at a time.