Differentiate between protective irrigation and productive irrigation.
Differentiation between protective irrigation and productive irrigation :
Protective irrigation- (i) It protects the crops from adverse effects of soil moisture deficiency. (ii) Irrigation acts as a supplementary source of water over and above rainfall. (iii) Provides soil moisture to maximum possible area.
Productive irrigation- (i) It provides sufficient soil moisture in the cropping season to achieve high productivity. (ii) In such irrigation the water input per unit area of cultivated land is higher than protective irrigation. (iii) Productivity is high.
Explain the importance of foodgrains in the Indian agricultural economy. Describe any three characteristics of rice cultivation.
What is medical tourism ? Explain the scope of medical services for overseas patients in India.
Electricity is one of the greatest inventions of all times. It is mostly generated by using coal, natural gas and petroleum, which are exhaustible resources. Can you imagine the human society without electricity? This may happen in future, when all energy resources will be exhausted. Explain the values that can change this possible dark scenario.
‘‘Indian railways brought people of diverse cultures together.’’ Support this statement with suitable examples.
Define the term ‘growth of population’. Describe the third (III) phase of growth of population in India.
Which is the longest trans-continental railway of North America ? Describe its any four features.
