Oceans Quiz

Currents that occur at or near the surface of the ocean are called 

• Deep Currents

• Convection Currents

• Surface Currents

• Wave Currents

Answer explanation

Surface currents are the currents that occur at or near the surface of the ocean.

Regular movements of water far below the oceans surface are called

• Warm Currents

• Deep Currents

• Shallow Currents

• Surface Currents

Answer explanation

Deep currents are regular movements of water far below the ocean's surface.

Ocean currents bring warm water from the equator towards Earth's

• Southern Hemisphere

• Continents

• Equator

• Poles

Answer explanation

Ocean currents bring warm water from the equator towards Earth's Poles, not the Southern Hemisphere, Continents, or Equator.

Salinity is

• The salt content of a substance

• The Pepper content of a substance

• The circulation of hot and cold matter

• the weather pattern of a region

Answer explanation

Salinity refers to the salt content of a substance, making it the correct choice.

What heats the Earth's oceans?

• People

• Boats

• a heater

• sun

Answer explanation

The Earth's oceans are heated primarily by the sun.

Which body has the greater effect on Earth's tides?

• Sun

• Saturn

• Moon 

• Venus

Answer explanation

The Moon has the greatest effect on Earth's tides due to its gravitational pull.

Changes in the positions of Earth, the moon, and the sun affect the height of high tides during a month. 

• True

• False

Answer explanation

The positions of Earth, the moon, and the sun affect high tides. True is the correct choice.

The warm, top layer of ocean water

• surface zone

• bio-luminescence

• deep zone

• transition zone

Answer explanation

The warm, top layer of ocean water is called the surface zone. It is the correct choice because it is the layer closest to the surface and is characterized by higher temperatures.

The ocean layers are divided by the amount of __________________ in each layer.

• animals

• salt

• light

• people

Answer explanation

The ocean layers are divided by the amount of light in each layer.

There’s very little life, immense pressure and absolutely no sunlight in this zone.  Name it.

• sunlight

• twilight

• midnight

Answer explanation

The correct answer is midnight. In this zone, there is no sunlight, immense pressure, and very little life.