Name three ways the environment in the ocean is different than life on land.

Explanation:

Marine organisms produce over half of the oxygen that land animals currently need to breathe. ... Most sea animals extract oxygen directly from ocean water, while land animals breathe air from Earth's atmosphere, which consists of about 21 percent pure oxygen

it would lead to upper respiratory infections and pneumonia.

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )