interpret the passage
map showing height are very essential when roads are dams how to be constructed if we have to lay roads in an adulting region between two places search maps help us in deciding this route to be taken by the road similarly when dam
land it is necessary to show now how much land will be submerged why the water of the dam
Answers
Answer:
There is something inherently fascinating about maps. They invite the eye to roam free and resonate perhaps with our ancient hunter-gatherer instincts. Maps tell stories of what was and what could be. They can represent the world around us in ways we never imagined so that something as prosaic as which way the wind blows becomes a view into an alternate universe. Maps can make subway routes a work of art and reveal relationships we never knew existed.
Clip from "Dams in the Mekong Basin" that shows every known commissioned, under construction, and planned dam in the basin.
In the Mekong, dreams revolve around hydropower development. Everyone has a point of view, some for, some against, but here is one view that everyone can more or less agree on. Several years in the making, the CGIAR Challenge Program on Water and Food has what is for the time being at least the most accurate map of dams in the Mekong.
It's a crowded picture. This is in part because the map includes planned and under construction dams and not just hydropower dams but reservoirs for water supply and irrigation. Figures vary depending on who you ask and the numbers are subject to change, but the general estimates are: a cascade of eight mainstream dams on the Lancang, with five currently in operation and another 20 planned or under construction on Lancang tributaries. On the Mekong south of the China border: 30 in operation with another 134 on the drawing boards. The numbers are impressive or frightening, depending on your politics, but numbers alone don't show the whole picture. For that, a map is useful.
The CPWF Hydropower Map tells a story, represents a dream and, like many maps do, raises questions. Is there anywhere else on the planet with such a density of dams? Is it economically possible to build all those dams? In such a crowded landscape, how does one dam affect the operation of another? Will the Mekong Basin become a Garden Lakes and how would that affect things like food security and where people live and what they do for work?
One of the benefits is that when people are asking questions like this and pointing at a map, they are less inclined to point fingers at each other. Visually representing the numbers as a map externalizes issues that otherwise tend to descend into "duelling citation" debates that lead nowhere near the identification of real problems and potential solutions.
Explanation:
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