根据上文的“All living things need clean, fresh water to survive. Ninety-seven percent of the water on earth is in the ocean. The salt in the ocean water makes it unusable for drinking. Another two percent is frozen in the ice caps and glaciers on the Earth.(所有生物都需要干净、新鲜的...
百度试题 结果1 题目 4. More than ninety-seven percent(percent) of the water on the earth is (be) in the sea, so we must save fresh water(淡水). 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
What is the largest reservoir of fresh water on Earth? What kind of water is found in most lakes? Is the amount of water on Earth constant? How much of Antarctica has melted? What is the average temperature of groundwater? How many gallons are in Lake Michigan?
supply faster than it runs out of food. Glaciers (冰川) are a possible source of fresh water that has been overlooked until recently. Three-quarters of the Earth's fresh water supply is still tied up in glacial ice a reservoir of untapped freshwater so huge that it could carry on ...
All living things need clean, fresh water to survive. Ninety-seven percent of the water on Earth is in the ocean. The salt in the ocean water makes it unusable for drinking. Another two percent is frozen in the ice caps and glaciers on the Earth. This leaves one percent of the water ...
百度试题 结果1 题目2. Only 2. 53 percent of the water on the earth is(be) fresh water. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
There are still many kinds of animals and plants there that we don't know about. If we lose the Amazon, we will lose a big part of life on Earth.【练一练】完成句子。1. The Amazon River is about long.2. At least kinds of fish live in the Amazon Rainforest.3. The passage tells...
But on all other days we must also remember it. The water we use is the most important natural resource(自然资源)on the earth. Water covers 70 perent of the earth’s surface (表面). But most of that is sea water. We can’t use it for very many things. Fresh water covers only ...
There is a lot of water on the (earth ) ,but we cannot use most of it.About 97.4% of the earth's water is ( salty ) .We can’t drink it.Most of the fresh water is snow and ice near the North and South poles.We can use only about one percent of the water on the earth.We...
What is the percentage of carbon dioxide in the air we breathe? What is the density of human muscle in relation to water? How much of the Earth's freshwater is accessible to humans? Approximately, how much of all the water found on Earth occurs in the global ocean? (a) 97% (b)...