How do elements such as chlorine, bromine, sulfur, and boron get into the ocean?

Volcano eruption is correct answer.

Explanation:

Volcano eruption occurs when hot materials get thrown out from the interior of earth's surface.

When there is volcanic eruption , it emit so many gases as follows:

Water vapour

Carbon dioxide

Sulfur dioxide

Some elements are two produced by volcano are :

Sulfur

Bromine

Boron

Chlorine

which get into oceans.

Hence, volcano eruption is correct answer.

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