Changing a river into a lake is basically what a large dam does. One reason we do this to create reservoirs of fresh water. Howe
ver, dams change the local ecosystem in a big way. What is one negative impact of building a dam? A) Dams are needed to create hydroelectricity. B) Dams can create smog that pollutes the lake. C) Dams can help reduce the intense heat of summer. D) Sometimes people who lived along the banks of the river are displaced.
Clouds are made of microscopic droplets of water ranging from 1 to 100 microns. Although, a water droplets total size, water's density is still much greater than air, and over time the earth's gravitational pull should cause the water droplet to fall.
