Exploring Earth's Domains

What must a new planet have to be suitable for human settlement?

• A similar atmosphere to Mars

• At least one ocean

• Mountains and rivers

• All four major domains of Earth

What are the two main parts of the lithosphere?

• The crust and the core

• The inner and outer core

• The mantle and the crust

• The continental and oceanic crust

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

• About 50%

• About 65%

• About 71%

• About 80%

What percentage of Earth's water is consumable by humans?

• 71%

• 2.5%

• 50%

• 10%

Which layer of the atmosphere contains most of the atmosphere's mass?

• Thermosphere

• Stratosphere

• Troposphere

• Mesosphere

What is the primary function of the ozone layer?

• To absorb ultraviolet rays

• To regulate temperature

• To absorb carbon dioxide

• To produce oxygen

Where does all of Earth's weather occur?

• Stratosphere

• Exosphere

• Mesosphere

• Troposphere

Which layer of the atmosphere is directly above the troposphere?

• Thermosphere

• Exosphere

• Mesosphere

• Stratosphere

What forms the biosphere?

• Land, water, and air

• Just land

• Land and water

• Water and air

Which sphere is described as having both the plant and animal kingdoms?

• Lithosphere

• Hydrosphere

• Atmosphere

• Biosphere