Spheres of the Earth

Front

What are the four main spheres of the Earth?

Back

The four main spheres of the Earth are the biosphere, atmosphere, geosphere, and hydrosphere.

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 atmosphere?

Back

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

Front

What is the geosphere?

Back

The geosphere includes all the solid parts of the Earth, such as rocks, soil, and landforms.

Front

What is the hydrosphere?

Back

The hydrosphere encompasses all water on Earth, including oceans, rivers, lakes, and groundwater.

Front

How do the biosphere and atmosphere interact during respiration?

Back

During respiration, living organisms take in oxygen from the atmosphere and release carbon dioxide back into it.

Front

What happens during a volcanic eruption in terms of sphere interaction?

Back

During a volcanic eruption, the geosphere interacts with the atmosphere as gases and ash are released into the air.

Front

What role does the geosphere play in the nitrogen cycle?

Back

The geosphere provides soil where dead organisms decompose, returning nitrogen to the soil.

Front

How do plants interact with the geosphere?

Back

Plants absorb nutrients and water from the soil, which is part of the geosphere.

Front

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

Back

An example is when animals drink water from rivers or lakes, which are part of the hydrosphere.