The maps below show the changes in area after construction of a hydroelectric power dam. Summarise the information by selecting and reporrting the main features, and make comparisons where relevant.

The maps illustrate a comparison of the area before and after the construction of a hydroelectric dam in 1980 and 2000. In 1980, there was a main river surrounded by large mountains, forests, and villages. The forest was rich in rare plants and animals, and people at that time made a living through agriculture. They […]