Ocean Zones

This is a bundle of rootlike strands that attaches the algae to rocks

What is the only zone that is part of the ocean zone that recieves enough sunlight to support the growth of algae?

This process is when an eruption along the ridge gradually pushes the older rock away from the center of the ridge.

A tropical ocean community made by tiny animals that have algae growing in their tissues is a

This is a ring-shaped reef surrounding a shallow lagoon.

The steep incline at the edge of the continental shelf is called what?

Water that is partly salty and partly fresh is known as

This is the part of the ocean that extends from the lowtide line to the edge of the continental shelf

Why do scientists need to develop technology to enable them to study the deep ocean floor?

A ring-shaped coral reef surrounding a laggon is called a seamount

This technology is a system that uses sound waves to calculate the distance to an object

The area between the high and low tide lines is the neridic zone

What is the smooth, nearly flat region of the ocean floor?

This is a mountain whose peak does not break the surface of the ocean water above.

An area where rivers flow into the ocan and fresh water and salt water mix is a

Most ocean pollutants come from

Water that is partly salty and partly fresh is brackish

This is a gently sloping, shallow area of the ocean floor that extends outward from the edge of a continent

In the open-ocean zone, organisms depend directly or indirectly on food that is made by

The mountain ranges of the mid-ocean ridge, trenches, and underwater volcanoes are all formed by what?

This is the part of the ocean that lies beyond the end of the continental shelf

What is the production of light by living things called?

What is a steep-sided canyon in the ocean floor?

These are tiny algae and animals that float in the water and are carried by waves and currents.

These are organisms that inhabit the ocean floor

What are costal inlets or bays where fresh water from rivers mix with the salty ocean water.

Earth's crust and upper mantle are made up of moving

The mid-ocean ridge is formed where the plates converge.

Many deep sea fishes use their bioluminescence to attract prey