Answer:
A new species being introduced in the environment, the species being forced to move and to adapt to new environments, a mutated individual reproduces with non-mutated individuals.
Explanation:
There are many different explanations for this question.
Answer:
the answer is A: solution 1.
Explanation:
The answer should be B if I help you out pls mark me as a brain less
Because some bacteria is bad so it can cause illnesses and diseases and some are good.
B. atmosphere since the atmosphere is made up of o2, co2 (a greenhouse gas) and nitrogen. those are the primary elements
