A. true b. false. all members of a food web are equal in abundance and in their relative effects on one another.

The statement can be categorized as "False".

The food chain means that all the living things get the food and energy or nutrition pass from one to another. As you go up the food chain the abundance which the statement says stays equal actually reduces and diminishes because of loss of energy through normal procedures, for example, respiration etc.

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

i think that d. wind is the answer.   i missed the question when i answered a. currents.