About the Earth

What season do we have when the northern hemisphere tilts away from the sun?

• Summer

• Spring

• Fall

• Winter

What is the percentage of nitrogen and oxygen in the air?

• 20% Oxygen

  70% Nitrogen

• 70% Oxygen

  20% Nitrogen

• .008% Oxygen

  75% Nitrogen

• 20% Oxygen

  .008% Nitrogen

What is the order of the earth's four main layers? (Starting from the inside out)

• 1.) Outer core

  2.) Inner core

  3.)The crust

  4.) Mantle

• 1.) Inner core

  2.)Mantle

  3,) Outer core

  4.) The crust

• 1.) Inner core

  2.) Outer core

  3.) Mantle

  4.) The crust

• 1.) The crust

  2.) Mantle

  3.) Outer core

  4.) Inner core

What happens when the tectonic plates shift?

• Earthquakes could occur if the crustal rocks collide violently.

• Volcanoes could erupt if the earth's crust rocks collide violently.

• All of the responses

• The crustal rocks could collide violently, resulting in earthquakes and volcano eruptions.

What are the various systems that comprise the planet?

• Hydrosphere, Heliosphere, Lithosphere, and Bathysphere

• Geosphere, Hydrosphere, Atmosphere, and Biosphere

• Photosphere, Ionosphere, Britney Spears, Microsphere

• Ozonosphere, Rhizosphere, Oosphere, Noosphere