Earth's Spheres

Front

What are the four interconnected systems of the Earth?

Back

Atmosphere, Biosphere, Lithosphere, Hydrosphere.

Front

Which system of the Earth is NOT one of the four main systems?

Back

Magnetosphere.

Front

What does the geothermal gradient describe?

Back

The change in temperature with depth in the Earth's interior.

Front

How does temperature change with depth according to the geothermal gradient?

Back

It increases with depth.

Front

What is the most abundant gas in Earth's atmosphere?

Back

Nitrogen.

Front

What is the relationship between geothermal gradient and temperature of Earth's interior?

Back

They are directly proportional.

Front

What are the characteristics of freshwater bodies?

Back

They can range in size, found in streams and rivers, and can vary in depth and shape.

Front

What is the primary component of the atmosphere that supports life?

Back

Oxygen.

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is the biosphere?

Back

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