what are the subsidiary purposes served by controlling movement of water and by its conservation
Answers
A water reservoir is an enclosed area for the storage of water to be used at a later date. It can also serve to catch floods to protect valleys downstream of it, to establish an aquatic environment, or to change the properties of the water. A reservoir can be created by building a dam across a valley, or by using natural or man-made depressions. The main parameters of the reservoir are the volume, the area inundated and the range that the water level can fluctuate. The basic function of an artificial reservoir is to change the rate of flow in the stream or to store water for more expedient use. Reservoirs are among the more useful means of controlling the natural character of water flows, instead of depending on nature. There is significant interaction between reservoirs and the environment: the reservoirs affect the environment and vice versa. This is true for both the quantitative and the qualitative aspects of water.
Answer:
it helps in the development of internal water ways
the cheapest form of internal transport in india