Earth's spheres

Front

What are the four main spheres of Earth?

Back

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

Front

What is the atmosphere?

Back

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

Front

What is the hydrosphere?

Back

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

Front

What is the geosphere?

Back

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

Front

What is the biosphere?

Back

The biosphere is the global sum of all ecosystems, where life exists on Earth.

Front

How do the atmosphere and hydrosphere interact?

Back

The atmosphere and hydrosphere interact through processes like evaporation and precipitation.

Front

Give an example of the biosphere interacting with the hydrosphere.

Back

An example is an elephant spraying itself with water to cool down.

Front

What happens if the oxygen level in the atmosphere changes?

Back

A change in oxygen levels can significantly affect living organisms and ecosystems.

Front

How do wind and sand demonstrate the interaction of spheres?

Back

Wind blowing sand across the desert shows the interaction between the atmosphere and geosphere.

Front

What is erosion, and which spheres are involved?

Back

Erosion is the process of wearing away land, involving the hydrosphere and geosphere.