Which one of the following statements is not true?

Assertion (A) : The frequency of floods in North Indian plains has increased during the last couple of decades.
Reason (R): There has been reduction in the depth of river valleys due to deposition of silt.

Mekong Ganga Co-operation Project is

Consider the following countries:
1. Australia
2. Namibia
3. Brazil
4. Chile
Through which of the above does the Tropic of Capricorn pass?

The approximate age of the Aravallis range is

The correct sequence of the eastward flowing rivers of the peninsular India from north to south is

The average annual temperature of a meteorological station is 26°C, its average annual rainfall is 63 cm and the annual range temperature is 9°C. The station in question is

The river which has almost same size of Kaveri is

The sea coast of which one of the following states has become famous as a nesting place for the giant Olive Ridley turtles from South America?

Open stunted forests with bushes and small trees having long roots and sharp thorns or sharp thorns or spines are commonly found in