4. Which of the following occurs when algae decompose in the ocean? A. Decomposers at the ocean's surface remove oxygen from the air.
B. Decomposers add oxygen to the ocean floor.
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C. The ocean water releases excess oxygen into the air.
D. Decomposers remove oxygen from the ocean water.

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

we need the questions , i may then you.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).