Why are marine oceanographers particularly concerned with coastal regions? o a. coastal regions are highly impacted by human activity. o b. previous studies in marine science have largely ignored them. o c. they are the only areas that marine oceanographers can access. o d. by definition, marine oceanographers are only concerned with the coast.

A. Coastal regions are highly impacted by human activity

Explanation:

Since I'm not completely sure I will debunk the others and let you decide.

-Option D- says they are ONLY concerned with the coast. KEY WORD only. Oceanographers study the ocean and not just the coast.

-Option C- also not true, the coast is probably the easiest portion to access but growing technologies and inventions like submarines made the ocean easier to study.

-Option B- I'm not sure of this one. I would think previous studies would start with the coast because it's the easiest to access

-Option A-  Man-made beaches, water pollution, shoreline erosion. changing an organisms environment disrupts the ecosystem and human activities cause a significant decline in coastal habitats. i think this is the answer

and i oop

explanation:

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation: