Earth's Systems

Front

What is the atmosphere?

Back

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

Front

What is the most abundant gas in the atmosphere?

Back

Nitrogen is the most abundant gas in the atmosphere, making up about 78%.

Front

What are the four spheres of Earth?

Back

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

Front

How do the Earth's spheres interact?

Back

The Earth's spheres are interconnected and influence each other, affecting weather, climate, and ecosystems.

Front

What is the geosphere?

Back

The geosphere refers to the solid parts of Earth, including rocks, soil, and landforms.

Front

What is the hydrosphere?

Back

The hydrosphere includes all of Earth's water, such as oceans, rivers, lakes, and groundwater.

Front

What is the biosphere?

Back

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

Front

How does weathering occur?

Back

Weathering is the process of breaking down rocks and minerals through physical, chemical, or biological means.

Front

What role does the atmosphere play in weathering?

Back

The atmosphere contributes to weathering through chemical reactions, such as acid rain, that break down rocks.

Front

What happens during a volcanic eruption?

Back

During a volcanic eruption, magma from the geosphere is expelled, releasing gases and ash into the atmosphere.