The structure of the earth is groped into two zones. These are the outer structure and the internal structure.
credit
THE OUTER STRUCTURE OF THE EARTH
The outer structure of the earth is made up of four zones of layers. These zones or layers are:-
- Atmosphere
- Lithosphere
- Hydrosphere
- Biosphere
LITHOSPHERE
CHARACTERISTIC OF LITHOSPHERE
- The lithosphere is the solid portion of the earth
- It is the outermost layer or zone of the earth crust
- It is made up of rock and minerals materials
- It represents 30% of the earth surface
- It forms the land mass which is labour 10-50 km
- The outermost layer of the land mass is made up of loose rock materials like gravel sand and soil.
IMPORTANT OF LITHOSPHERE TO MAN
- Lithosphere forms the basis of all human settlement.
- All minerals resources are derived from the lithosphere
- It aid transportation through construction of roads, railways, airport, etc.
- All farming activities are carried out on the lithosphere
- Most human activities like mining, trading, e.t.c are carried out on lithosphere.