The main reason for land degradation in the states of Punjab, Haryana and western Uttar Pradesh is
Over grazing
Medium irrigation
Over irrigation
Mining
Soil erosion due to wind is termed
Wind erosion
Sheet erosion
Water erosion
Gullies
Classify the resources on the basis of origin
Biotic and abiotic
Potential and reserves
Renewable and non-renewable
National and international
Name the soil which is rich in iron but poor in silica.
Alluvial soil
Red soil
Laterite soil
Desert soil
The total geographical area of India is
3.28 million sq km
2.38 million sq km
4.28 million sq km
2.28 million sq km
The resources that can be renewed or reproduced
Non renewable resources
Renewable resources
Biotic resources
Abiotic resources
In India is plains occupy ______ percentage of total land area.
43%
63%
83%
93%
The red colour of the soil is due to the diffusion of
Basalt
Silicon in crystalline and metamorphic rocks
Iron in crystalline and metamorphic rocks
Iron and Basalt
The largest public sector undertaking in India
Railways
Waterways
Roadways
Airways
The resources which are owned by private persons are the
Community resources
Individual resources
National resources
Potential resources