ICSE − Q & A

largest producer of iron ore and limestone and bauxite

alluvial soil are largely found in northern india.why

soils form the backbone of our economy.why

black soil needs to be ploughed after first rain.why

identify the soil:
1.rich in humus
2.rich in potash, poor in phosphorus.
3.high proportion of soluble salts
4.rich in lime and potash but poorin phosphorus and nitrogen

give reason:
productivity of red soils is low

red soil is less fertile.why

red soil is less fertile

black soil needs to be tilled after first rain.why

give reasons: 
 alluvial soil can hold moisture and is very fertile

which soil is found suitable for coffee cultivation in karnataka

why black soil is agriculturally imp.

give reason:
 large tracts in maharashtra are covered with black soil

give reason: man is largely responsible for soil erosion

state 2 reasons for low productivity of red soils

mention 2 ways by which soil can get nitrogen

in which region south of tropic of cancer , can one find soil formed by leaching

name one mineral associated with black soil

Trellis and Rectangular drainage patterns are not the same right?