Question

which marine ecosystem depends on upwelling from the seafloor to maintain its high productivity? coastal marshes intertidal zones estuary forests neritic zones question 22 (multiple choice worth 4 points) (03 02r lc) which of the following describes a nonpoint source pollution? dirty drainage from city roadways leak from a local factory runoff from a single cattle ranch industrial plant wastewater

Explanation:

1. Upwelling brings nutrient - rich water from the deep sea to the surface, fueling high productivity. Neritic zones are the waters above the continental shelf and can receive nutrients from upwelling in some regions compared to the other options which are more coastal and less directly tied to upwelling for productivity maintenance.
2. Non - point source pollution comes from diffuse sources. Dirty drainage from city roadways is spread out over a large area, unlike the other options which are from single, identifiable sources (point sources).

Answer:

1. None of the above options are correct. Upwelling - rich ecosystems are often open - ocean areas near the equator or along the western coasts of continents, not the options given. But if we had to choose the most related one among these, neritic zones can sometimes benefit from upwelling to some extent.
2. A. Dirty drainage from city roadways