Chapter 3

Molten rock rises along the _______________to form new ocean floor.

The ecosystem found at the shore between the low and high tide lines is the ___________.

An ecosystem in which fresh water and salt water mix is an _________________.

The gently sloping ocean floor known as the _____________is found at the edge of continents.

Under the ocean a deep _____________forms where crustal plates collide.

The steep incline from the continental shelf to the abyssal plain is the _________________.

An underwater ridge, usually made up of coral skeletons, is a ______________________.

A ring of islands that forms around a volcano is an _______________.

____________________is an undersea volcano that rises above the surrounding ocean floor.

The floor of the deep ocean, known as the ________________, includes some of the flattest places on Earth.