Adv Science

       China should not build any more hydroelectric dams along the Jinsa or Yangtze River. Building the Three Gorges Dam disrupted the ecosystem and caused many environmental problems. It caused damage to the wildlife, surrounding people, and somewhat the river. Due to the dam, millions had to leave their homes and families with very little or no financial help. Mostly farmers were forced to leave the comfortable homes and farm where the land was not as good. Many historical treasures and archeological digging sites were ruined because of the dam. Treasures from original Chinese cultures can now never be found. The Three Gorges Dam disrupted the environment and people.       The wildlife in the Yangtze River and the surrounding people were greatly affected by the Three Gorges Dam, but not in a good way. Dangerous erosion was caused due to construction on the reservoir banks. After the reservoir was built risks of landslides increased around seventy percent putting those near the riv

commons.wikimedia.org Summary: After finishing every one's erosion presentations we learned about the parts of a river and where they normally are on a river. We started off by labeling the main parts of a river together, the source, tributary, confluence, meanders, and the mouth. The source is where the river begins, there may be more than one. The tributary is a small portion of water that joins the main river. The confluence is the area where the tributary joins the main river. The meanders are the bends or turns in a river. The mouth is where the main river enters another body of water. Some other parts of a river are a v-shaped valley, a waterfall, an alluvial fan, a floodplain, levees, an ox-bow lake, and a delta. A v-shaped valley is a valley whose slopes make the shape of a v. A waterfall is a  drop in the bed of a river making the water to drop down vertically. An alluvial fan is a fan or half circle shaped mound of sand and gravel, alluvium. A floodplain i s flat lan