Ocean Currents

Fill in the blank: Currents move water __________ and __________.

• horizontally; vertically

• slowly; quickly

• warmly; coldly

• upstream; downstream

Tides are very long-period waves that move through the ocean and towards the coastline in response to ________ forces exerted by the sun and moon.

• gravitational

• magnetic

• thermal

• electrical

Why are currents important for influencing world climate and weather?

• Currents influence world climate and weather by redistributing heat and energy across the globe.

• Currents only affect the movement of marine animals, not climate.

• Currents are responsible for creating mountains and valleys.

• Currents have no impact on weather or climate patterns.

How do currents support marine life?

• Currents support marine life by acting as a transport mechanism and providing a food source.

• Currents support marine life by increasing water temperature only.

• Currents support marine life by preventing any movement of nutrients.

• Currents support marine life by reducing oxygen levels in the water.

Which of the following is a type of ocean current?

• Surface currents

• Deep ocean currents

• Both A and B

• None of the above

Surface currents are found from the surface to approximately ____ meters deep.

• 400

• 40

• 4,000

• 4

Deep ocean currents are found below ____ meters.

• 400

• 100

• 1000

• 40

Surface currents are driven by global wind systems that are fueled by energy from the ____.

• sun

• moon

• ocean

• mountains

Surface currents transfer heat from ____ to ____ areas.

• warmer, cooler

• cooler, warmer

• dry, wet

• wet, dry

Surface currents are similar to the pattern of major ____ belts.

• wind

• ocean

• mountain

• temperature