Ocean Currents and Climate Quiz

What is the primary force that drives ocean currents?

• Wind

• Earthquakes

• Volcanoes

• Tides

Which term describes the movement of ocean water in a continuous flow?

• Tides

• Waves

• Currents

• Ripples

How does temperature affect the density of ocean water?

• Warmer water is denser

• Colder water is denser

• Temperature has no effect

• Both warm and cold water have the same density

What happens to ocean water when its salinity increases?

• It becomes less dense

• It becomes more dense

• It evaporates

• It freezes

Which ocean current is known for its warm water and influence on the climate of Western Europe?

• Gulf Stream

• California Current

• Labrador Current

• Canary Current

What is the term for the vertical movement of water that brings nutrients from the deep ocean to the surface?

• Downwelling

• Upwelling

• Tidal flow

• Surface drift

Which factor is NOT a primary driver of ocean currents?

• Wind

• Salinity

• Temperature

• Moon phases

How do ocean currents affect marine ecosystems?

• They provide a constant temperature

• They distribute nutrients and oxygen

• They prevent fish migration

• They block sunlight

What is the main effect of ocean currents on global climate?

• They cause earthquakes

• They regulate temperature

• They increase volcanic activity

• They decrease rainfall

Which of the following is a result of upwelling in the ocean?

• Decreased fish populations

• Increased nutrient availability

• Warmer surface temperatures

• Lower salinity levels