<span>The most common contaminant to be found in drinking water is microorganisms, nitrate and arsenic. Though water quality and monitoring has come a long way over the past few years, viruses, bacteria and protozoa like giardia lambia can be found in the water and often leads to wide spread illnesses.</span>
Answer:
Nutrient replenishment
Explanation:
Any living organism has nutrients in their body. So when they die or decompose, a lot of the nutrients break down and goes back into the ground.
Option A, When cells undergo meiosis, the cells of sexual reproduction are divided into two parts, the first is the meiotic division that is reductional division, and the second is an equational division because they have the same number of chromosomes of the stem cell And in this situation, there is no duplication of DNA.
According to sources, the most probable answer to this query is that nephrons found in the kidney are responsible for filtering out waste in the blood cells. The resulting product is urea.
This is then excreted to the body.
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