Front

What is the hydrosphere?

Back

The hydrosphere is the part of Earth that includes all the water in oceans, rivers, lakes, glaciers, and even water vapor in the atmosphere.

Front

Which of the following does NOT belong in the hydrosphere?

Back

Corals are not part of the hydrosphere; they are living organisms found in the biosphere.

Front

What are the four main spheres of Earth?

Back

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

Front

What is the atmosphere?

Back

The atmosphere is the mixture of gases that surrounds the Earth, primarily composed of nitrogen and oxygen.

Front

How do the biosphere and geosphere interact?

Back

When animals decompose, nutrients from their bodies enrich the soil in the geosphere, supporting plant life in the biosphere.

Front

What is an example of the hydrosphere interacting with the atmosphere?

Back

The ocean affecting air temperature is an example of interaction between the hydrosphere and atmosphere.

Front

What percentage of air in the atmosphere is oxygen?

Back

Air in the atmosphere is composed of 21% oxygen.

Front

What is the geosphere?

Back

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

Front

What role does the atmosphere play in weather?

Back

The atmosphere contains gases that trap heat and moisture, influencing weather patterns and climate.

Front

What is the biosphere?

Back

The biosphere is the global sum of all ecosystems, where all living organisms exist.