NatGeo Ch2: The Earth

How long does it take Earth to rotate on its axis?

• 1 year

• 1 month

• 1 week

• 1 day

Tags

1.1

What occurs on June 20 or 21 in the Southern Hemisphere?

• summer solstice

• autumn equinox

• spring equinox

• winter solstice

Tags

1.1

Which of Earth's layers is mostly liquid?

• mantle

• crust

• outer core

• inner core

Tags

1.2

Where is the Ring of Fire located?

• around the Mediterranean Sea

• in the middle of the Arctic Ocean

• along the rim of the Pacific Ocean

• near the edge of the Atlantic Ocean

Tags

1.4

What happens during condensation?

• The sun heats up the ocean and water vaporrises into the atmosphere.

• Water soaks into the ground and runs off into rivers.

• Droplets grow heavier and fall to Earth as rain or snow.

• Cooler temperatures cause water vapor to change into droplets.

When would a person in Australia typically experience the autumn equinox?

• December 21

• June 21

• March 21

• April 21

Tags

1.1

What causes the plate tectonics of the crust to move?

• The revolution around the sun pulls the plates along.

• Ocean currents push and pull the plates in different directions.

• Earthquakes push the plates away from each other.

• The magma in the mantle rises and settles, causing a rotation that moves the plates above it.

Tags

1.2

How long does it take Earth to make one revolution around the sun?

• 1 year

• 1 month

• 1 week

• 1 day

Tags

1.1

On what layer of Earth do tectonic plates rest?

• mantle

• inner core

• outer core

• crust

Tags

1.2

What is it called when the sun heats the ocean and water vapor rises into the air?

• runoff

• evaporation

• precipitation

• condensation

Tags

1.5