Earth's Oceans

True or False.Some areas of the ocean are saltier than others.

Temperatures in the surface zone vary with latitude and the time of the year.

• True

• False

The deep zone is the bottom layer that extends from the base of the thermocline to the bottome of the ocean.

• True

• False

True or FalseThe water cycle is a cycle that links all of the Earth's solid, liquid, and gaseous water together.

• True

• False

Which percentage of the Earth is covered with water?

• 50%

• 71%

• 80%

• 75%

• 90%

The _____________ Ocean is mostly covered by ice.

This ocean is the smallest of the four main oceans on Earth.

• Indian Ocean

• Atlantic Ocean

• Arctic Ocean

• Pacific Ocean

Which happened first?

• All oceans except the Pacific Ocean are expanding.

• The Indian Ocean and the North Atlantic Ocean began to form.

• The South Atlantic Ocean was much smaller than it is today.

• The Earth had one giant body of water, Panthalassa, and one giant landmass, Pangaea.

What part of the water cycle is the changing of a gas to a liquid?

• Precipitation

• Evaporation

• Condensation

• None of the above

How did water vapor collect in the atmosphere before the oceans formed?

• It was spewed from volcanoes.

• It came from another planet.

• It. came from the sun.

• None of the above

Which happened second?

• All oceans except the Pacific Ocean are expanding.

• The Earth had one giant body of water, Panthalassa, and one giant landmass, Pangaea.

• The South Atlantic Ocean was much smaller than it is today.

• The Indian Ocean and the North Atlantic Ocean began to form.

What ocean contains about one half the water volume of the Pacific Ocean?

• Arctic Ocean

• Indian Ocean

• Atlantic Ocean

• Mediterranean Sea

Salinity is usually measured in _______________

The _________________ is a layer of water extending from 300m below sea level to about 700m below sea level.

• Surface zone

• Deep zone

• Thermocline

• None of the above

What percentage of dissolved solids in ocean water is chlorine?

• 30.6%

• 7.7%

• 55%

• 26%

Which ocean is home of the mid-ocean ridge?

• Indian Ocean

• Pacific Ocean

• Atlantic Ocean

• Arctic Ocean

• None of the above

Which of the following affect ocean salinity?

• Humidity

• Temperature

• Water movement

• Inflow of fresh water