Indian Geography
The term ‘demographic gap’ signifies the difference in which of the following?

Age
Between the birth and the death rate
Child / woman ratio
Sex ratio

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Indian Geography
Which among the following matches of rivers and their sources are correct?1. Brahmaputra- Angsi Glacier2. Damodar- Chotonagpur Plateau3. Mahananda- Darjeeling Hills4. Son- Amarkantak PlateauChoose the correct option from the codes given below :

1, 2 & 4
1 & 2
1, 2 & 3
1, 2, 3 & 4

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Indian Geography
Which of the following statements is not correct about the tank irrigation in peninsular India?

Rainwater can be easily stored by constructing tanks
Percolation of rainwater is less due to hard rock
Underground water level is higher
Most of the rivers are seasonal and dry up in summer reason

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