please solve the above question
class 10
Answers
Answer:
Q:1 wt are the factors which help in the formation of soil ?
Ans:Five main interacting factors affect the formation of soil:
Five main interacting factors affect the formation of soil:parent material—minerals forming the basis of soil.
Five main interacting factors affect the formation of soil:parent material—minerals forming the basis of soil.living organisms—influencing soil formation.
Five main interacting factors affect the formation of soil:parent material—minerals forming the basis of soil.living organisms—influencing soil formation.climate—affecting the rate of weathering and organic decomposition.
Five main interacting factors affect the formation of soil:parent material—minerals forming the basis of soil.living organisms—influencing soil formation.climate—affecting the rate of weathering and organic decomposition.topography—grade of slope affecting drainage, erosion and deposition.
Q2: define resource. how are resources classified.
Ans: Resources can be classified in the following ways– (a) On the basis of origin – biotic and abiotic (b) On the basis of exhaustibility – renewable and non-renewable (c) On the basis of ownership – individual, community, national and international (d) On the basis of status of development – potential, developed stock and reserves.
Q3: describe any three steps that can be take to solve the problem of land degradation.
Ans:(a) Contour ploughing : Ploughing along the contour lines can decelevate the flow of water down the slopes.
(a) Contour ploughing : Ploughing along the contour lines can decelevate the flow of water down the slopes.(b) Terrace cultivation : Steps can be cut out on the slopes, making terraces. Terrace cultivation restricts erosion.
(a) Contour ploughing : Ploughing along the contour lines can decelevate the flow of water down the slopes.(b) Terrace cultivation : Steps can be cut out on the slopes, making terraces. Terrace cultivation restricts erosion.(c) Strip cropping : Large fields can be divided into strips. Strips of grass are left to grow between the crops. This breaks up the force of the wind reducing its effect.