Answer:
population level
Explanation:
it ocurrs at the population level as scientists requires genetic variation between individuals of a population for natural selection
Answer: Conclusion
Explanation:
Scientific method can be defined as a detailed plan for conducting research in a particular scientific domain. This is used to give scientific explanation for natural phenomena. In scientific method a hypothesis is created, observation is made, experimentation is conducted and then finally a conclusion is made to address the hypothesis.
Therefore, after the research is completed the conclusion is made by analyzing all the facts related to the literature and results of the experiments.
Answer:
The chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production. ... Free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone.