The aphotic zone is the upper layer of the ocean where there is enough light for photosynthesis and vision.

PERF Reports conclude that frequent changes in shifts are:

Scientists think that turbidity currents contribute to the formation of submarine canyons.

​Which statement best reflects global temperatures with respect to San Francisco, California and  Norfolk, Virginia, two cities that lie along the same latitude?

Which of the following accounts is not closed at the end of the reporting period?

An estuary, which forms where a rapidly flowing large river enters the ocean in an area where tidal range is low to moderate, is called a ____.

Expenditures and expenses are classified as which of the following elements under GASB concepts statements?

The Appropriations account of a governmental fund is credited when:

​The field of marine science involves ____.

Physical resources that are extracted from the ocean and are useful to humans include ____.