Earth's Spheres and Their Interactions

Which sphere of Earth consists of all life on the planet?

• Geosphere

• Hydrosphere

• Atmosphere

• Biosphere

Which element is the most abundant in Earth's crust?

• Silicon

• Aluminum

• Oxygen

• Iron

What is the average salinity of ocean water?

• 0.5 ppt

• 100 ppt

• 50 ppt

• 35 ppt

Which of the following is a freshwater reservoir found underground?

• River

• Lake

• Ocean

• Groundwater

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

What is the term for the steady increase in temperature with depth beneath Earth's surface?

• Thermal Expansion

• Thermal Equilibrium

• Heat Conduction

• Geothermal Gradient

Tags

NGSS.HS-ESS2-3

Which of the following ions is the most abundant in ocean water?

• Sodium ion

• Chloride ion

• Sulfate ion

• Magnesium ion

Which statement about the four spheres of Earth is true?

• They often occur in the same place and interact.

• They do not occur in the same place and do not interact.

• Scientists think there are more than four spheres of Earth.

• They describe distinct layers of Earth's interior.

Veterinarians care for animals that are hurt, and also help to keep animals healthy. They help many different animals from dogs and cats to fish and hermit crabs. Which of Earth's spheres do these animals belong to?

• atmosphere

• biosphere

• cryosphere

• geosphere

Earth's crust is part of which sphere

• geosphere

• hydrosphere

• atmosphere

• biosphere

Tags

NGSS.MS-ESS2-3

The sphere containing all land

• Atmosphere

• Hydrosphere

• Biosphere

• Geosphere