How can the environment affect population sizes? My scientific explanation is:

Your answer should include at least six complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.

The environment affects the population such as people with lung diseases affect there overall health and may lead to death. Also, the way humans live affect global warming which could affect floods that would also lead to death. People with skin diseases are more likely to get sick or die from the global warming. Starvation take a huge factor on natural disasters. Second hand smoking into the lungs can create serious problems for people that are surrounded around people that smoke and have weak lungs and immune system.

it's c (engineer's do their work with mechanical stuff not on any living being)