1. Describe how scientists explore the ocean floor and resources underneath the ocean floor – what types of technology do they use?

Scientist use submarines to explore the resources underneath. They use sonar's, flashlights computers, buoys and water column samplers are used to monitor sea. They also have (ROVs), that allow us to safely and efficiently explore all parts of the ocean.

Hope this helps!

I am joyous to assist you anytime.

~Jarvis

Explanation:

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."