Question

select all that apply
which of the following are ways in which hydrogenous sediments form?

plankton skeleton (tests) fall to the ocean floor.
carbonates form by direct precipitation.
sulfides form as hot, mineral - rich water from vents cools very quickly.
rivers deposit sand on continental shelves.

Explanation:

Answer:

Carbonates form by direct precipitation.
Sulfides form as hot, mineral - rich water from vents cools very quickly.