Earth's system & Spheres

Front

What is the primary source of energy for the Earth system?

Back

The primary source of energy for the Earth system is the Sun.

Front

What percentage of the atmosphere is made up of oxygen gas?

Back

21%.

Front

What does the cryosphere include?

Back

The cryosphere includes ice, snow, and permafrost, but NOT liquid water.

Front

Is Earth's atmosphere primarily composed of Nitrogen and Oxygen?

Back

True.

Front

What does the geosphere include?

Back

The geosphere includes the continents, ocean floor, rocks on the surface, and sand in deserts.

Front

What is the hydrosphere?

Back

The hydrosphere is the sphere that includes all of Earth's water, including oceans, rivers, lakes, and glaciers.

Front

What is the biosphere?

Back

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

Front

What is the atmosphere?

Back

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

Front

What is the difference between the geosphere and the hydrosphere?

Back

The geosphere refers to Earth's solid land, while the hydrosphere refers to all water on Earth.

Front

What role does the Sun play in the Earth's system?

Back

The Sun provides energy that drives weather, climate, and photosynthesis.