Freshwater Feeders: Studying Food Webs In Freshwater

Freshwater Feeders: Studying Food Webs In Freshwater — page 1
Rivers Lakes Ponds and Streams Earth’s surface is more than 70 percent water but only 1 percent is freshwater Freshwater contains very little salt Lakes ponds rivers and streams are freshwater resources Besides drinking water they provide water for sanitation industry agriculture recreation and food Lakes are large bodies of water surrounded by land Ponds are smaller Rivers and streams have flowing water Each type of freshwater has its own ecosystem An ecosystem is made up of plants and animals and non-living things such as water and nutrients The most important part of any ecosystem is its energy source usually the Sun 4 on This UNITED Chew Scientists often study small samples of water so they can better understand how ecosystems work in nature