MUTATIONS can be caused by a variety of alterations in DNA. Examples: there are 3 types of DNA mutations which are base substitutions, deletions, and insertions.
<span>The correct answer is A. atoms. Atoms are studied by physics and chemistry, not by ecology. Ecology studies organisms, populations, and the earth in terms of climate, pollution prevention, natural habitats and biomes, and all kinds of similar things that are related to living on earth. Atoms are irrelevant for the study of ecology.</span>
The correct answer is C, due to the fact that the things that power electrical energy are non-renewable, such as coal and other products. hope this helps, have an amazing day :)
