<span>Overfishing exploits natural habitats of underwater creatures
by taking more than what can be naturally sustained over time. One way of
combating is to control the amount of harvest and implementing to all affected
areas (oceans, rivers, ponds etc). This will ensure that the eco system will
have ample time to repopulate.</span>
Answer:
D. They show that neither theory is complete and entirely correct.
Explanation:
The right answer is CaF2
Calcium fluoride is an inorganic compound of formula CaF2. This ionic compound consisting of calcium and fluorine is naturally present in nature in the form of fluorine (also known as fluorite). It is the world's leading source of fluoride.
It is a solid insoluble in water, whose structure is cubic where each atom of calcium is adjacent to eight atoms of fluorine, and each atom of fluorine to four atoms of calcium.
