Earth's Systems Quiz

What is the composition of Earth's atmosphere?

• 78% nitrogen, 21% oxygen, 0.9% argon, 0.1% other gases

• 78% oxygen, 21% nitrogen, 0.9% argon, 0.1% other gases

• 78% carbon dioxide, 21% oxygen, 0.9% argon, 0.1% other gases

• 78% nitrogen, 21% argon, 0.9% oxygen, 0.1% other gases

What is the geosphere?

• The total amount of water on a planet

• The parts of Earth where life exists

• The rocks that make up Earth

• The atmosphere of a planet

What is the biosphere?

• The total amount of water on a planet

• The parts of Earth where life exists

• The rocks that make up Earth

• The atmosphere of a planet

What is the hydrosphere?

• The total amount of water on a planet

• The parts of Earth where life exists

• The rocks that make up Earth

• The atmosphere of a planet

How high does Earth's atmosphere extend?

• Up to 10,000 kilometers

• Up to 5 kilometers

• Up to 15 kilometers

• Up to 100 kilometers

What is the primary gas in Earth's atmosphere?

• Oxygen

• Nitrogen

• Argon

• Carbon dioxide

What is the primary component of Earth's geosphere?

• Water

• Air

• Rocks

• Plants

Where does the biosphere exist?

• Underground

• In the air

• On the surface of the planet

• All of the above

What does the hydrosphere include?

• Liquid water only

• Water vapor only

• Ice only

• Liquid, vapor, and ice

How many major parts does the Earth system have?

• Two

• Three

• Four

• Five