Earth Subsystem Quiz

What is the primary gas in Earth's atmosphere?

• Nitrogen

• Carbon dioxide

• Oxygen

• Helium

Which layer of the atmosphere is closest to the Earth's surface?

• Troposphere

• Mesosphere

• Ionosphere

• Exosphere

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

• 85%

• 71%

• 30%

• 50%

What is the largest ocean on Earth?

• Atlantic Ocean

• Indian Ocean

• Arctic Ocean

• Pacific Ocean

Which layer of the Earth is divided into the crust, mantle, and core?

• Outer Layers

• Surface Layers

• Interior Layers

• Middle Layers

What is the outermost layer of the Earth called?

• mantle

• crust

• atmosphere

• core

Which biome is characterized by cold temperatures, permafrost, and little vegetation?

• Tundra

• Rainforest

• Desert

• Savanna

What is the process by which plants use sunlight to convert carbon dioxide and water into food?

• Photosynthesis

• Chlorophyllation

• Plantnourishment

• Sunlightification

Which part of the Earth's system includes all living organisms?

• atmosphere

• lithosphere

• biosphere

• hydrosphere

What is the term for the continuous movement of water on, above, and below the surface of the Earth?

• Liquid Rotation

• Water Cycle

• Hydrological Cycle

• Aqua Movement