13. Why is soil dark grey to black in colour?
14. Few states or places of India have high population density. Why?
Answers
13.Soil color is produced by the minerals present and by the organic matter content. Yellow or red soil indicates the presence of oxidized ferric iron oxides. Dark brown or black color in soil indicates that the soil has a high organic matter content.
14.The places which have most job, signified fertile land, availability of labor, good governance, people move there from their original locations like to Delhi, Mumbai and Pune.
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Answer:
13.
A. Soil color is produced by the minerals present and by the organic matter content. Yellow or red soil indicates the presence of oxidized ferric iron oxides. Dark brown or black color in soil indicates that the soil has a high organic matter content.
14.
A.Due to the climatic and topography of an area, there are some areas that receive very little rainfall there are some which receive heavy rainfall. There are places where there are hills or desert or plain area.