List and describe at least 4 seafloor features and explain the difference between passive and active margins.

The Coriolis effect describes how moving objects on Earth appear to follow curved paths due to Earth’s rotation.

Describe how one of the early explorers, other than Christopher Columbus, contributed to our understanding of the oceans. Include who, when and what was achieved?

A tentative, testable statement about the general nature of a phenomenon is called a/an:

The organisms that contribute to biogenous sediment are chiefly algae and protozoans.

Hydrothermal vents are seafloor cold seeps with high concentrations of sulfur and salts.

Volcanic features on the ocean floor that are less than 1,000 meters (0.6 miles) tall are called:

Layers of the earth separated based on density differences.

Explain what happens to the pH of the ocean as carbon dioxide levels increase in the atmosphere.

The Earth formed around 4.6 billion years ago.