Natural Systems A level Geography AQA CGP p3 The Earth

What type of system is the Earth?

• closed

• isolated

• open

Where does the Earth get its energy from?

• The Sun

• The Tides

• The Wind

The Earth receives energy from the sun as an input into its system, but where is its energy output discharged?

• Into the atmosphere

• Into the oceans

• Into space

The whole Earth can be broken down into five (5) main subsystems. From the diagram identify the missing subsystem, which includes areas below freezing.

• Cryosphere

• Magnetosphere

• Stratosphere

Which subsystem includes all living parts of the Earth such as plants, animals, birds, fungi, insects, bacteria etc.

• Geosphere

• Cryosphere

• Biosphere

What is the generic term used for the layer of gas between the Earth's surface and space, which is held in place by gravity?

• Atmosphere

• Stratosphere

• Troposphere

Sometimes referred to as the geosphere, which subsystem covers the outermost part of the Earth and includes the upper mantle and crust?

• Cryosphere

• Hydrosphere

• Lithosphere

What subsystem includes all the water on Earth whether it is in the form of a liquid , solid or gas?

• Aqua-sphere

• Cryosphere

• Hydrosphere

The cryosphere includes all parts of the Earth where it is cold enough for water to freeze. Which of the following make up the cryosphere?

• freshwater ice

• glaciers

• permafrost

• sea ice

The five subsystems are all interlinked by the cycles and processes that keep the Earth system as a whole running as normal. They include......

• The carbon cycle

• The nitrogen cycle

• The oxygen cycle

• The water cycle

• All of these