Earth's Subsystems

The solid outer section of the Earth.

It is composed of 78% nitrogen, 21% oxygen, 0.9% argon, and the remaining 0.10% is made up of different trace gases.

The global ecological system integrating all living things and their relationship.

This is the reason why Earth is called the “blue planet”.

Everything on Earth's system can be placed into one of four major subsystems: land, water, ___________, or air.

The term biosphere was coined in 1875 by Austrian geologist _________ (1831-1914).

• Edward Hubble

• Edward Suess

• Edwin Hubble

• Suess Edwin

The geosphere extends from the center of the

Earth (the core, __________ and crust) to the dust in the

atmosphere and even includes the sediments found in

the oceans.

The ________ includes water that is on the surface of the planet, underground, and in the air.

What do you think will happen if one of the 4 subsystems will stop functioning?

The interaction between Earth’s subsystems is vital in sustaining life on the planet.

• TRUE

• FALSE