Back in the pioneer days, people had water for living. Many traders shipped goods from one area to another on rivers. People could grow crops, catch fish and collect water. Now factories are built right next to rivers for using the water's power to make machines work. Rivers are also ...
Back in the pioneer days, people had to use water for living. Many traders grew crops, catch fish and collect goods from one area to another on rivers. Many factories are built right next to rivers for the water's power to make machines work. Rivers are also used to ship large goods ...
But some people don’t really care about this . They waste a lot of water pour dirty water and throw rubbish into rivers or lakes. As a result many rivers and lakes are polluted and there is less and less water for us to drink. So we must do something to protect the water resource....
300 people in the Philippines alone. Dino, who manages the Thresher Shark Divers (TSD) centre, turned his home into an evacuation shelter, supplying rice and water stockpiled from Cebu City to his staff. Malapascua was flattened, but no lives were lost on the island. Tourists had been...
Our city has started to face the problem. Some rubbish is sorted and sent to a certain place .Waste gas is cleaned before it goes into the air. Waste water is also cleaned before it is poured into rivers. People should be prevented from throwing rubbish everywhere. We should try our best...
A. From the lakes near them. B. From the rivers near them. C. From the waterfalls near them. 相关知识点: 试题来源: 解析 A 【原文】 A: Xiaoya, how can people get water from deserts? B: There are lakes in some deserts. People usually live near the lakes....
How Cities Treat Our Water1.Water is drawn in from lakes, riversor ground water.Incoming water is screened () toremove() all large objects.2.Inside the plant, Chlorine() is added to killCImicro-organisms(微生物).After that, Aluminum () is3.added to bring remainingparticles() together.4...
HowSomePeopleGetWaterfromAroundtheWorld How Some People Get Water from Around the World Come and discover how other countries collect water.
✧ Do not let children swim in rivers alone. 03People who have a pool:✧ Make sure you can clearly see the pool from your house.✧ Make a 5-feet-tall fence (篱笆) to stop children going in.✧ Keep all electrical (电的) things away from the pool....
(a) The water in rivers often contains pollutants such as acids.Describe how universal indicator paper can be used to determine the pH value of the water.dip indicator paper in to water compare the colour withcolour chart match colour with colour chart ...