Earth Systems Quiz

What is the primary gas in Earth's atmosphere?

• Carbon dioxide

• Oxygen

• Helium

• Nitrogen

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

• Mesosphere

• Stratosphere

• Exosphere

• Troposphere

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

• 71%

• 50%

• 85%

• 30%

What is the process of water changing from a liquid to a gas called?

• Precipitation

• Condensation

• Sublimation

• Evaporation

Which layer of the Earth is made up of the crust and upper mantle?

• crustosphere

• lithosphere

• mesosphere

• mantlecrust

What is the outermost layer of the Earth called?

• mantle

• core

• crust

• atmosphere

Which layer of the Earth is composed of solid iron and nickel?

• Crust

• Inner core

• Mantle

• Outer core

What is the study of interactions between living organisms and their environment called?

• geology

• ecology

• biology

• chemistry

What is the process by which rocks are broken down into smaller pieces called?

• Deposition

• Erosion

• Weathering

• Volcanism

What type of rock is formed from the cooling and solidification of magma or lava?

• Igneous rock

• Volcanic rock

• Metamorphic rock

• Sedimentary rock