What are some answers to the following questions about hydrothermal vents?

Research and describe the following: - Pressure at a hydrothermal vent vs. pressure on the ocean surface - Temperatures of water at ocean depths vs. temperature at vents - List of chemicals emmitted from vents, pH of vent fluids vs. pH of normal ocean water. ---> Also, vents are continually forming and then... show more Research and describe the following:

- Pressure at a hydrothermal vent vs. pressure on the ocean surface
- Temperatures of water at ocean depths vs. temperature at vents
- List of chemicals emmitted from vents, pH of vent fluids vs. pH of normal ocean water.

---> Also, vents are continually forming and then become extinguished. What is the average 'life span' of a vent'?
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