1st period Ocean Currents Pretest 2024-2025

The movement in our oceans takes place due to the _________________.

• placement of our planet in space
• uneven heating of Earth and salinity of the oceans
• freshwater
• the plants and animals that live in them

When surface currents meet continents and change their direction this is known as

• Density
• Continental Deflection
• Coriolis Effect
• Gulf Stream

The amount of matter in a given space or volume is called

• salinity.
• density.
• continental deflection.
• Coriolis Effect.

These are winds that blow across the Earth's surface around the world.

• Deep Currents
• Coriolis Effect
• Global Winds
• Ocean Currents

Decreasing the temperature of ocean water _____ its density.

• decreases
• increases
• does not change
• does not affect

Cold water currents start where it is colder near the _______.

• Equator
• Land
• Poles
• Islands

Warm water currents start where it is warmer near the _______.

• Equator
• Land
• Poles
• Islands

What is a large streamlike movement of water that flows through the ocean called?

• a jet stream
• the coriolis effect
• a current
• a flood

One of the longest surface currents on Earth that transports 25 times more water than all of the rivers in the world combined is the __________.

• warm Gulf Stream
• Antartic Bottom Water
• North Atlantic Deep Water
• Northern Atlantic Drift

Streamline movements of water that are found at or near the surface of the ocean are called ________.

• deep currents
• electrical currents
• waves
• surface currents