Earth Quiz

How many times did the Earth spun?

• 2 times
• 3 times
• 4 times
• 1 time

How many layers does the Earth have?

• 3 layers

• 4 layers

• 5 layers

• 6 layers

What is the largest ocean on Earth?

• Atlantic Ocean

• Indian Ocean

• Arctic Ocean

• Pacific Ocean

Which layer of the Earth is made of liquid metal?

• Crust

• Mantle

• Outer core

• Inner core

What causes the Earth's seasons?

• The Earth's rotation on its axis

• The Earth's orbit around the Sun

• The distance between the Earth and the Sun

• The tilt of the Earth's axis

What is the Earth's primary source of energy?

• Geothermal energy

• Wind energy

• The Sun

• Water currents

Which gas is most abundant in the Earth's atmosphere?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

What percentage of the Earth's surface is covered by water?

• 50%

• 61%

• 71%

• 81%

Which layer of the Earth is the thickest?

• Crust

• Mantle

• Outer core

• Inner core

What is the main component of the Earth's crust?

• Oxygen

• Silicon

• Aluminum

• Iron