Marine Ecosystems and Oceanography Crossword Puzzle

This person made observations on the on the ocean currents of the U.S. east coast.
This is a disease is caused by a lack of vitamin C in one's diet.
A coral reef that forms a small island enclosed by a lagoon.
The Greek word for river.
This trench is the deepest part of the ocean.
Hydrothermal vents support this in the deep ocean.
This person invented the first marine chronometer.
What kind of relationship do marine animals and coral reefs have.
Kelp can grow how many inches per day.
This is used in many products including shampoo, toothpaste, etc.
Hydrothermal Vents provide what for marine animals in the deep ocean?
Is a major problem for the open ocean currently and in the future.