In this Geoshortqa we are going to know about types of Sand Dunes. Types of Sand Dunes, Geoshortqa Sand Dunes Sand dunes are heaps of sand found in deserts . Generally , their heights vary from a few metres to 20m , but in some cases dunes are several hundred metres high and 5 to 8 km long . The formation of sand dunes requires • Wind of high velocity • Abundant sand • Obstacles such as trees , bushes , forests , rock outcrops , walls against , which dunes may settle • Ideal places i.e. dune complex , dune colony or dune chain . Dunes formed due to obstacles like hushes , walls etc. are called nebkhas , where dune formed besides desert depressions are called lunettes. Dunes are classified on the basis of morphology , structure , orientation , location , internal structure , ground pattern and number of slip faces . These are the various types of sand dunes a) Transverse Dunes are dunes deposited transverse to the prevailing winds direct...
In this Geoshortqa we are going to know about short overview of industrial location theories.
Industrial location theories, Geoshortqa
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Alfred Weber's industrial location theory
Year :- 1909
Main theme :- Least cost location
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Hoover's theory of location
Year :- 1948
Main theme :- overcome some of the weakness of Weber's theory
In his book “The Location of Economic Activity”
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Losch's Market area or profit maximisation Approach
Year :- 1954
Main theme :- Marketing factor and the idea of maximum profits related to sales
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D M Smith location theory
Year :- 1966
Main theme :- refine industrial location theory by stressing the need for empirical research. He developed graphic techniques that included the use of cost isopleths or cost contours.
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Behaviour location theory Allen Pred
Year :- 1967
Main theme :- Two dimensional model to describe factors which explains from the landscape pattern predicted by classic economies geography location model
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