Waterfalls
By-Addison Woxland
Niagara falls
What are the top 5 waterfalls in the world
5.Sutherland falls is a national park in New Zealand the waterfall drops 1904 feet. Sutherland falls is one of the most popular in New Zealand, it is the best attraction in New Zealand. It is one of the most dramatic drops that you can get it is bumpy on the way down and the it is all rocks at the bottom.
4.Plitvice waterfalls Northern Dalmatia, Croatia this is just an attraction in Croatia. It is world famous waterfalls it has 3 big waterfalls and multiple little water falls. The drop for the biggest waterfall is 230 feet.
3.Dettifoss waterfall it is a national park in Iceland. The drop is 197 feet. It falls at 500 cubic meters per second. In Iceland they call it the Icelandic version of the Grand canyon.
2.Gullfoss Haukadalur,Iceland. This is the first waterfall to ever been seen with a 90 degree angle. Some people think that with it's unique shape to it people think that you can see a rainbow at any time of the day.
1.Yosemite falls Yosemite national park in California, United States. The drop for Yosemite falls is 2425 feet. Yosemite does not flow year long it is crowned best attraction in California.
Erosion
The waterfall is a powerful force of erosion, especially when the water contains sediment even at the lip, the water gains power as it approaches the brink. Waterfalls are temporary phenomena. While waterfalls from the base of the falls removing rock foundations, the scouring of the lip goes back every single minute but nobody really notices, which will decrease the height that is what erosion does is decreases the height…
Dams
A dam is a barrier that impounds water. Reservoirs created by dams not only suppress floods but also provide activities. Dams are manly used to control flood levels. The first dams were built in Mesopotamia in the 14th century. The Quatinah dam on the Orontes river in the Syria was built in the 14th century it is one of the oldest dams that still work today.
It took over 10,000 people to build hoover dam
Hoover dam it more than 650 feet at the bottom and only 45 feet at the top.
When hoover dam was built it costed 49 million today if they were to rebuild it i would cost 811 million to build the same dam.