UT1 Flashcards
(27 cards)
What is land as a resource
A natural resource of utmost importance
What does land support
Natural vegetation wild life human life economic activities transport communication systems
Is land an asset of finite magnitude
Yes it is
Why is careful planning important for land use
Because land is an asset of a finite magnitude
How much of India’s total geographical area is surveyed for land use data
93 per cent
What are the main relief features in India’s land area
Mountains plateaus plains and islands
What percentage of India’s land area is plain
About 43 per cent
What does plain land provide facilities for
Agriculture and industry
What percentage of India’s land area is mountains
30 per cent
What benefits do mountains provide
Ensure perennial flow of some rivers facilities for tourism ecological aspects
What percentage of India’s land area is plateau region
About 27 per cent
What does the plateau region possess
Rich reserves of minerals fossil fuels and forests
What has resulted from continuous use of land over a long period without appropriate measures
Land degradation
What are the consequences of land degradation
Serious repercussions on society and the environment
What percentage of basic needs for food shelter and clothing are obtained from land
Ninety five per cent
Have human activities aggravated the pace of natural forces causing land damage
Yes they have
What human activities have contributed significantly to land degradation
Deforestation over grazing mining and quarrying
What do abandoned mining sites leave behind
Deep scars and traces of over burdening
In which states has deforestation due to mining caused severe land degradation
Jharkhand Chhattisgarh Madhya Pradesh and Odisha
In which states is overgrazing one of the main reasons for land degradation
Gujarat Rajasthan Madhya Pradesh and Maharashtra
In which states is over irrigation responsible for land degradation
Punjab Haryana western Uttar Pradesh
What problems does over irrigation lead to
Water logging leading to increase in salinity and alkalinity in the soil
What does mineral processing like grinding limestone generate
Huge quantity of dust in the atmosphere
How does dust from mineral processing affect water infiltration into the soil
It retards the process after it settles down on the land
