SC.6.E.7.4 earth's Spheres

The continent of Antarctica is covered with an ice sheet. Which part of the Earth system includes the ice sheet?

• biosphere

• cryosphere

• geosphere

• atmosphere

Earth has both freshwater and salt water. About how much of Earth’s water is freshwater?

• 3%

• 15%

• 67%

• 97%

Each layer of the geosphere has a different composition. What element composes most of Earth’s crust?

• iron

• nickel

• silicon

• aluminum

Sometimes fires burn down large areas of forests that are part of the biosphere. Other than the biosphere, which of Earth’s other systems is a forest fire most likely to affect?

• geosphere

• cryosphere

• atmosphere

• hydrosphere

When trees die, they often fall on the ground and decompose. Which part of the Earth system includes dead and decomposed trees?

• biosphere

• geosphere

• hydrosphere

• cryosphere

Where is the atmosphere located?

• above the crust

• below the crust

• above the core

• below the oceans

Which of these answers describes Earth’s atmosphere?

• all living and once-living things

• the mixture of gases that surrounds Earth

• a mixture of nickel and iron below the mantle

• all the salt and fresh liquid water on Earth’s surface

Which of these parts of the Earth system are interacting when Florida’s orange trees grow?

• biosphere, hydrosphere, and atmosphere

• geosphere, cryosphere, and atmosphere

• biosphere, hydrosphere, and cryosphere

• cryosphere, atmosphere, and hydrosphere

Which of these pairs are part of the cryosphere?

• rain and snow

• glaciers and lakes

• permafrost and icebergs

• Arctic ice sheet and rainfall

What two spheres are represented by the water and heron?

• biosphere and geosphere

• atmosphere and biosphere

• hydrosphere and biosphere

• atmosphere and hydrosphere