Answered

which of the following is the best definition of hydrothermal vent?

Aa hot spot on those an floor
Ba place on the ocean floor where a volcano is gradually forming
Ca place where water heated by magma rises from the ocean floor
Da crack through which magma reaches the ocean floor creating new crust

Verified Answer :

PrinceBrainly

Hi There! :)

Which of the following is the best definition of hydrothermal vent?a) a hot spot on those an floor
b) a place on the ocean floor where a volcano is gradually forming 
c) a place where water heated by magma rises from the ocean floor
d) a crack through which magma reaches the ocean floor creating new crust

a) a hot spot on those an floor

Answer:

Option (C)

Explanation:

The hydrothermal vents are the narrow cracks or passage at the ocean floor through which the hot water comes out. The water when percolates beneath the ocean floor through the cracks, then it gets heated up reacting with the hot molten magma and again comes out through those narrow openings. These narrow openings through which the liquid or a gas is allowed to pass is known as the hydrothermal vents.  

They are commonly found near the volcanoes and the mid oceanic ridge. It plays an important role in controlling the ocean water chemistry.

Hence, the correct answer is option (C).