Earth's Spheres Reading Passage

Which sphere of Earth includes all living things?

• Biosphere

• Hydrosphere

• Atmosphere

• Geosphere

What is the primary role of the hydrosphere in Earth's climate?

• Moderates Earth's climate

• Provides nutrients for plants

• Contains Earth's weather

• Supports all life on Earth

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

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What are the main components of the geosphere?

• Rock and metal

• Water and air

• Living organisms

• Gases and dust particles

How do living things in the biosphere interact with the hydrosphere?

• They depend on water to live

• They consume gases from the atmosphere

• They use minerals from the geosphere

• They reflect sunlight to moderate temperature

What percentage of Earth's water is found in the ocean?

• 96.5%

• 75%

• 50%

• 25%

What protects Earth from extreme heat and dangerous radiation from the sun?

• Atmosphere

• Hydrosphere

• Geosphere

• Biosphere

What sphere includes all of the living things?

(a)  

What sphere includes all of the water and ice on the planet?

(a)  

What sphere includes the air around the Earth?

(a)