(ii) What type of soil is found in the river deltas of the eastern coast? Give three
main features of this type of soil.
(iii) What steps can be taken to control soil erosion in the hilly areas?
(iv) What are the biotic and abiotic resources? Give some examples.
please answer me urgent
Answers
Explanation:
ii) Alluvial Soil
Alluvial Soil is found in river deltas. Three main features of this type of soil are: It is very fertile. It is rich in potash, phosphoric acid and lime.
iii) Following steps are taken to control the soil erosion in hilly areas: (i) Contour ploughing: this refers to ploughing along contour lines. (ii) Terrace farming: construction of steps along the hilly areas by cutting the rock layers to reduce the flow of rivers. (iii) Plugging of gullies to prevent gully erosion.
iv) Biotic resources: - The resources which are provided from the biosphere are called biotic resources. Examples: - Fish, Flora and fauna. Abiotic resources: - All the things which are non-living are called abiotic resources. Examples: Rocks and metals.
Answer:
Alluvial Soil is found in river deltas. Three main features of this type of soil are: It is very fertile. It is rich in potash, phosphoric acid and lime.
Following steps are taken to control the soil erosion in hilly areas: (i) Contour ploughing: this refers to ploughing along contour lines. (ii) Terrace farming: construction of steps along the hilly areas by cutting the rock layers to reduce the flow of rivers. (iii) Plugging of gullies to prevent gully erosion.
Biotic resources: - The resources which are provided from the biosphere are called biotic resources. Examples: - Fish, Flora and fauna. Abiotic resources: - All the things which are non-living are called abiotic resources. Examples: Rocks and metals.