Explanation:
This electron exchange results in an electrostatic attraction between the two atoms called an ionic bond. An atom that loses one or more valence electrons to become a positively charged ion is known as a cation, while an atom that gains electrons and becomes negatively charged is known as an anion.
The other is a result of ones radiation or sun exposure
Answer:
it b or d
Explanation:
that is the most important for scientistes to study
b tells what can be in the fossill or find in the fossill
so i think it b
Answer:
The growth and aquatic plants and algae, but also the death of fish and other invertebrates.
Polygenic dominates because it would be masked
