NCERT Solutions for Class 9 Science Unit 14
Natural Resources Class 9
Unit 14 Natural Resources Exercise Solutions
Biosphere: The whole combination of animals, plants and non-living beings which by their interaction make the planet earth a live and vibrant place is called biosphere.
Biotic Components: Living things constitute the biotic component of the biosphere.
Abiotic Components: The air, the water and the soil form the non-living or a biotic component of the biosphere. The air is called the hygrosphere, the water is hydrosphere and the soil is called lithosphere.