Water is important. Have you ever wondered where all the water on the earth came from? Is the earth the only planet with water?To answer these questions, we must understand what water is made up of. Water is made up of tiny building blocks called atoms.When atoms join together, they ma...
A. surface B. cover C. land D. ground 相关知识点: 试题来源: 解析 [答案] A [考点] 名词辨析 [解析] 此题暂无解析 [解答] A 考查名词辨析。A表面,B掩盖物,C陆地,D地面。句意:我们都知道,地球___97%的水是咸水。根据句意可知是地球表面。故选A。反馈 收藏 ...
This is called “the greenhouse effect”. It causes the level of the oceans to rise and the climate of the earth to change. More Carbon Dioxide All these problems are very serious, so we must do something now. 辨析: rise和raise rise : (1)“上升,升起; 起床, 起来” rise—rose--risen...
The water on Earth has been moving all the time for billions of years. It travels from ocean to air to land and back to the ocean. This continuous movement is called the water cycle, and it is the reason that earth has the same amount of water today as it did back in the days of...
The first Islamic bank has opened in Morocco after a long time of rejection by the country's authorities, according to a statement by its central bank on Wednesday. Hong Kong promotes "Belt and Road" scholarship in UK Hong Kong SAR is promoting its Scholarship for "Belt and Road" Students...
百度试题 结果1 题目___all the water on the earth disappear one day, what would happen?相关知识点: 试题来源: 解析 Should 反馈 收藏
The earth is covered by water. All lives on the planet (行星,地球) need water. 1 To keep the water clean, we mustn’t throw litter into the sea, rivers, or lakes. We can also use machines to make the water clean. 2 Here are some reasons. Firstly, clean water is useful for...
very, very hard, the rain water will run down the hills. It takes some of the land with it when it runs down the hills. It is callederosionwhen the water takes the land away. Water on the earth will never be used up. It goes from the ocean to the air to make clouds. Then, it...
第二节 阅读填空We live on Earth. Water covers most of the Earth. Nearly all water is salt water. It’s not drinkable. 1. People, animals, and plants need it to live. Where can we find the fresh water? Fresh water is found in rivers, lakes, and streams. 2
how much water are there on the earth then?Most of the water is in the oceans or locked away as ice.The largest volumes of fresh water are stored underground as groundwater,imagine there is only one barrel of water in the world,then there is only a spoon of it on the land,and the...