Alvin was a deep sea vehicle which was used to explore the depths of the ocean. It sunk but was recovered and recommissioned in 1973 after which it discovered black smokers, a special type of hydrothermal vent which produces super heated water with a highly acidic pH. Thus, the answer is B.
A Pangaea...Hope This Helped U ♡
Answer:
Carbon
Explanation:
Most Organic compounds contain carbon (:
