6th grade quiz 3 of mp3

What is the source of energy that heats our planet's atmosphere and oceans?

• the weather

• the wind

• the Sun

• the Earth's core

The Sun warms the atmosphere and drives convection currents because

• warm air is less dense and rises

• warm air is less dense and sinks

• warm air is more dense and rises

• warm air is more dense and sinks

Why does the Earth experience unequal heating?

• The oceans are not equally distributed around the Earth.

• The Earth's revolution brings it closer to the Sun at certain points during the year.

• The Earth's axis is tilted.

• The atmosphere is not equally distributed around the Earth.

A map of sea surface temperatures is provided. The patterns that are observed are due to the fact that

• the earth is wider at the equator, so this area spins faster than the poles.

• the equator receives more of the Sun's radiation than other parts of the Earth.

• the salt content is greater at the poles than at the equator.

• the warm, less dense water near the equator sinks, while the colder water rises.

Why is the Equator warmest?

• Because it is closest to the sun.
• Because it receives the most direct sunlight
• Because no clouds form here.
• Because it is far from the sun

Cold air sinks because it is less dense than warm air.

• True

• False

Cold air sinks because it is more dense than warm air.

• True

• False

What type of heat transfer is happening in the atmosphere of each cell?

• Convection Cells

• Radiation Cells

• Conduction Cells

Why does Earth receive unequal heating?

• Different location receive different amounts of direct sunlight

• Earth moves closer and farther away from the sun.

• The core of the earth heats different parts of the Earth.

Where on Earth receives the most indirect sunlight?

• the poles

• the equator

• all areas get the same light