What is the main purpose of a scientific investigation A. to form an opinion
B. to test a hypothesis
C. to persuade with bias
D. To teach a lesson

B. To test a hypothesis

Explanation:

The main purpose of scientific investigations is to test a hypothesis.

Scientific investigations try to solve a problem with the use of the scientific method, which is the process of creating and testing a hypothesis.

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

as in mitosis, dna replication occurs during interphase.   in meiosis, it occurs specifically in s phase of interphase 1.