H; Substitution, because in the original strand “CG” was replaced (or substituted) by “AT” in the mutated strand.
<span>Reverse osmosis is the p</span>rocess
of desalination that uses high pressure and selectively permeable membranes to
remove salt from seawater. The correct answer between all the
choices given is the first choice or letter A.
To add, reverse osmosis<span> (</span>RO<span>) is a water purification technology that uses a
semipermeable membrane to remove ions, molecules, and larger particles from
drinking water.</span>
B. The amount of sleep students received before the exam
Organic compunds usually contain carbon. You can conclude this because of the relation of the word "organic" with the word "carbon", which is considered to be the element of life.
Inorganic compunds are compunds that do not an organic compund (characterized for cointaing carbon) though some compunds contain carbon are inorganic.
Hope it helped,
BioTeacher101