Answer:
<h2>Genetic abnormality</h2>
Explanation:
The genetic disease in which (i) the 23rd pair of chromosomes is always involved, (ii) there are always two chromosomes that comprise the 23rd pair, and (iii) there is always something wrong with one or both of the chromosomes is called a Genetic abnormality.
A genetic abnormality is happens by one or more abnormalities in the genome. It can be occurred by a mutation in a single gene or multiple genes or by a chromosomal abnormality.
Humans can affect the freshwater flow by polluting the water systems with waste gasoline and other human activities like driving and building factories.<span />
a. sample containing 30 percent sand, 35 percent clay and 30 percent silt.