As we all know, nearly 70 percent of the earth's surface (表面) is covered by water. Although there is so much water on the earth, most of it is salty and cannot be used for drinking. Only about 4 percent is fresh water.We need water for agriculture (农业) and industry (工业). ...
165K Discover how much of the world is water and the types of water on Earth. Understand the distribution of water on Earth with a breakdown of percentages. Related to this QuestionWhat percent of water on Earth is freshwater? What percentage of the hydrosphere is fresh water? What percenta...
Freshwater: Freshwater is the kind of water terrestrial plants and animals need to survive. It has less than 1,000 parts per million (ppm) of salt in it. So freshwater does not mean it has no salt but it has a very low level of salt in the water. ...
No matter who we are,where we are,or what we do,we cannot live without water.It is the source of all life and we need it every day.But in truth we're facing serious water problems. Although water covers 71 percent of the earth's surface,we can only use a very small amount of it...
What percentage of Earth's freshwater is contained in Antarctica? The oceans cover approximately what percent of the earth? What percentage of Australia is arid? How many people live there? How much water is in the Amazon rainforest?
Freshwater populations have declined by an average of 83 percent since 1970. For example, one population of pink river dolphins in the Amazon River area of Brazil fell by 65 percent between 1994 and 2016.(研究显示,50多年来,这些地区的种群数量下降了94%。河流和湖泊 栖息地的野生动物数量减少最多...
what percent of fresh water is frozen? 70% or 2/3rds Where does underground water come from? precipitation that soaks into the ground between soil and spaces in rocks. saturated zone the area of permeable rock or soil that is totally filled or saturated with water unsaturated zone A layer ...
He fears that by the year 2025, as many as one-third of the world’s projected 8.3 billion people will suffer from water shortages.Where Water GoesOnly 2.5 percent of all water on Earth is freshwater, water suitable for drinking and growing food, says Sandra Postel, dir...
nearly ran out of water due to a drought.Its freshwater reservoir (储藏) stayed at just above 13.5 percent of full capacity.By 2030, a world of about 8.6 billion people will need 35 percent more water, 40 percent more energy, and 50 percent more food, according to the United States Nati...
The ocean covers more than seventy percent of the Earth's surface. Of the water on Earth only about one percent is freshwater, with two percent in ice caps and 97 percent in the oceans as saltwater. Answer and Explanation: Learn more about this topic: ...