3 TYPES OF NATURAL RESOURCES
1) Land – provides us with most of the requirements like food, houses, clothing etc.
- 30% of the land available is use to man.
- Many parts are mountainous, rocky or deserts which are not of much use for
the purpose of building or cultivation.
Noted:
As the requirement for land for urbanization increases, more and more forests are being cut
down to make more land available. Due to rapid deforestation, the natural cycle of generation
of forests is being disturbed due to which the area of forests is decreasing considerably. This in
turn is affecting the plant and animal kingdom.
Forests Play a Vital Role:
- They purify the air and control pollution to some extent.
- Regulate the climatic conditions.
- Replenish the ground water.
- Decrease the run-off rate of rainwater.
- Control floods.
- Prevent soil erosion.
- Maintain the fertility of the soil.
- Support a wide variety of plant and animals species and provide a natural
habitat to them.
2) Water – is one of the unique features of the earth which makes life possible in its
present form.
- 70-75% of the surface of the earth covered with water.
- 90% of water is present as oceans and seas.
- Exists in 3 forms ( solid, liquid, gas )
Sea Water – sodium chloride or common salt forms 80% of the dissolved salts found in sea
water. Products extracted from sea water are cooking salt, magnesium and bromine.
Fresh Water – suitable for human consumption are found in lakes, rivers rain, ground water
etc. In the form of rain or snow, is formed from the condensation of the water vapour present
in air. Rain water accumulates in lakes and rivers and seeps into the soil as ground water.
1) Land – provides us with most of the requirements like food, houses, clothing etc.
- 30% of the land available is use to man.
- Many parts are mountainous, rocky or deserts which are not of much use for
the purpose of building or cultivation.
Noted:
As the requirement for land for urbanization increases, more and more forests are being cut
down to make more land available. Due to rapid deforestation, the natural cycle of generation
of forests is being disturbed due to which the area of forests is decreasing considerably. This in
turn is affecting the plant and animal kingdom.
Forests Play a Vital Role:
- They purify the air and control pollution to some extent.
- Regulate the climatic conditions.
- Replenish the ground water.
- Decrease the run-off rate of rainwater.
- Control floods.
- Prevent soil erosion.
- Maintain the fertility of the soil.
- Support a wide variety of plant and animals species and provide a natural
habitat to them.
2) Water – is one of the unique features of the earth which makes life possible in its
present form.
- 70-75% of the surface of the earth covered with water.
- 90% of water is present as oceans and seas.
- Exists in 3 forms ( solid, liquid, gas )
Sea Water – sodium chloride or common salt forms 80% of the dissolved salts found in sea
water. Products extracted from sea water are cooking salt, magnesium and bromine.
Fresh Water – suitable for human consumption are found in lakes, rivers rain, ground water
etc. In the form of rain or snow, is formed from the condensation of the water vapour present
in air. Rain water accumulates in lakes and rivers and seeps into the soil as ground water.
