Answer:
Evolution is change in the heritable characteristics of biological populations over successive generations.
Explanation:
Explanation:
biotech. engineering, there are a lot of biotech engineers, bcause they no how to cross breed corn, beans, wheat, etc....2 make plants 2 resist drought, stronger against pests, etc....
It would be A keeping lakes and rivers free of pollution im pretty sure im on the question myself but im pretty sure that i got it right.
