OnRamps Exam 4 Review

Recent research indicates that Arctic ice is melting faster than expected. Which of the following are potential consequences to ocean circulation and/or climate due to increased ice melt in the Arctic? (choose all that apply)

• Slowing down of the Global Ocean Conveyor belt due to the influx of freshwater

• Speeding up of the Global Ocean Conveyor belt due to the influx of freshwater

• A colder climate in Norway and Northwestern Europe

• A more powerful Gulf Stream current

Atmospheric circulation is most fundamentally driven by

• frontal lift

• climate change

• the Coriolis effect

• heat transfer from equatorial regions to polar regions

Recent research indicates that Arctic ice is melting faster than expected. Which of the following are potential consequences to ocean circulation and/or climate due to increased ice melt in the Arctic? (choose all that apply)

• Slowing down of the Global Ocean Conveyor belt due to the influx of freshwater

• Speeding up of the Global Ocean Conveyor belt due to the influx of freshwater

• A colder climate in Norway and Northwestern Europe

• A more powerful Gulf Stream current

A shipment of rubber elephants falls overboard in the southern Pacific Ocean at location G on the map. Ocean currents will transport the elephants around the ocean toward ___ next.

• D

• G

• B

• C

Why does the Earth have seasons?

• Because as Earth orbits the sun it is sometimes closer and sometimes farther away

• Because ocean currents move heat around the planet

• Because the shape of Earth’s orbit varies from circular to elliptical

• Because Earth’s axis is tilted

Think about what you know about albedo: At times when more continental land area is found near the poles, Earth would likely be ________ when continents are concentrated along the Equator.

• warmer than

• the same temperature as

• cooler than

• answer cannot be determined

This sea-surface temperature anomaly map is characteristic of

• El Nino in the North American summer

• La Nina in the North American winter

• An average year

• La Nina in the North American summer

Which of the following best describes the difference between climate and weather?

• Weather refers to extreme conditions only.

• Climate refers to patters of temperature over a period of time. While weather is based on atmospheric conditions over shorter periods of time.

• Climate changes from day to day and can’t be predicted

• Weather predictions are made based on long-term averages of climate

Which scenario would casue water to be most dense

• Warm salty water

• cold salty water

• warm fresh water

• cold fresh water.

When hot and cold water are mixed what will happen?

• the hot water will rise while the cold water will sink

• the cold water will rise while the hot water will rise

• the hot and cold water will mix evenly at the top

• the hot and cold water will mix evenly throughout the container