Answer:Water covers about 70 percent of the Earth's surface, but where did it come ... These two pieces of evidence would favor an asteroid origin.
Explanation:
The percent of C would be 135%
The answer is A
The wavelength of the radiation energy it emits
DNA Mutation is caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes. Thus, the correct answer is option D.
1.DNA Mutations are caused by environmental factors known as mutagens.
2.Types of DNA mutagens include radiation, chemicals, and infectious agents.
3.DNA Mutations may be spontaneous in nature.
