1. THE SPHERES OF THE EARTH
1. ATMOSPHERE
2. HIDROSPHERE
3. GEOSPHERE
4. BIOSPHERE

2. 1. ATMOSPHERE A layer of gases that surrounds the Earth
It prevents dangerous radiation from reaching the surface
It contains the gases we need: O2 and CO2

3. All the water on Earth (fresh water and salt water)
2. HIDROSPHERE
All the water on Earth (fresh water and salt water)
OCEANS AND SEAS
RIVERS AND LAKES
GROUNDWATER
POLAR ICE

4. The solid part of the Earth
3. GEOSPHERE
The solid part of the Earth
MINERALS
AND
ROCKS

5. The layer formed by all living beings of the Earth
4. BIOSPHERE
The layer formed by all living beings of the Earth

6. The four spheres interact with each other