Spheres of the Earth

Front

What are the four spheres of the Earth?

Back

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

Front

What is the biosphere?

Back

The biosphere is the global sum of all ecosystems, where life exists, including land, water, and the atmosphere.

Front

What is the hydrosphere?

Back

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

Front

What is the atmosphere?

Back

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

Front

What is the geosphere?

Back

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

Front

How do the biosphere and hydrosphere interact?

Back

Plants (biosphere) need water (hydrosphere) to grow, and animals depend on plants for food.

Front

What does the prefix 'atmo-' mean?

Back

The prefix 'atmo-' comes from the Greek word for 'air'.

Front

How do the geosphere and atmosphere interact during a volcanic eruption?

Back

During a volcanic eruption, gases like carbon dioxide are released from the geosphere into the atmosphere.

Front

What is an example of the interaction between the hydrosphere and geosphere?

Back

River currents eroding riverbanks is an example of the interaction between the hydrosphere and geosphere.

Front

What role does decomposition play in the biosphere and geosphere interaction?

Back

Decomposition of dead plants enriches the soil (geosphere) with nutrients, supporting new plant growth (biosphere).