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Pollution and conservation

The natural resources are of two types – inexhaustible and exhaustible.

  • Inexhaustible resources are available in abundance and will not get exhausted by their repeated use, such as solar energy or wind energy. Whereas, inexhaustible resources are present in limited quantity and their excessive use will ultimately lead to their depletion. 

  • Exhaustible resources are further classified as renewable, i.e. they have capacity to be replaced at a faster rate like wildlife whereas non-renewable resources are replaced at a slower rate like fossil fuels.

Soil as a natural resource

  • Soil is an important resource as plants grow and obtain their nutrition from the soil itself.

  • Soil erosion is the loss of nutrient-rich top soil by the action of wind and water.

Soil conservation

  1. Step farming

  2. Afforestation as roots of plants binds the soil.

  3. Crop rotation to increase the fertility and amount of top soil

  4. Use of manures and fertilizers to restore the fertility of top soil

Water as a natural resource

  • Though water is a present in abundance but the amount of pure water is limited. So we need to conserve water.

  • The depth in the soil below which soil spaces are filled with water only is called water table. Water table is falling day by day.

Water conservation

  1. Rainwater harvesting

  2. Afforestation

  3. Use of drip irrigation method

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