Front

What are the four spheres of Earth?

Back

The four spheres of Earth are the biosphere (living things), hydrosphere (water), atmosphere (air), and geosphere (land).

Front

What is the biosphere?

Back

The biosphere is the sphere that includes all living organisms on Earth.

Front

What is the hydrosphere?

Back

The hydrosphere is the sphere that includes all water on Earth, such as oceans, rivers, and lakes.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases surrounding Earth, essential for life.

Front

What is the geosphere?

Back

The geosphere is the solid part of Earth, including rocks, soil, and landforms.

Front

How do the biosphere and geosphere interact?

Back

When dead plants decompose, nutrients are returned to the soil, illustrating the interaction between the biosphere and geosphere.

Front

How does the atmosphere interact with the hydrosphere?

Back

Carbon dioxide from the atmosphere can dissolve in ocean water, showing the interaction between the atmosphere and hydrosphere.

Front

Give an example of how the hydrosphere affects the atmosphere.

Back

The ocean can affect air temperature, demonstrating the interaction between the hydrosphere and atmosphere.

Front

What is found in the geosphere?

Back

The geosphere includes soil, rocks, and minerals.

Front

What role does the biosphere play in the carbon cycle?

Back

The biosphere absorbs carbon dioxide during photosynthesis, contributing to the carbon cycle.