综合填空。which, close, main, harm, coal Two kinds of pollution, air pollution and water pollution, are often seen in our daily life They both do 16.to our earth. Our top-ic today is air pollution.Air pollution is 17.the result of waste or toxic(有毒的) gases. For example, fac-...
1.China’s water problem mainly lies in two aspects: water contamination and water shortage. ___ 2. In China, people are paying special attention to water quality because of man-made pollution and natural contamination. ___ 3. Before we find out a long-term solution to water problem,...
II.段落操练, 将下列句子排成一篇文理通顺的短文1. The most serious two are water pollution an d air pollution.2. An d we' d better go to other places by bike or by bus instea d of by car.3. There are many kinds of pollution I worry about.4. All in all, we shoul d try to ma...
What are the main types of waste? List three features of water that make it conducive to life Give two types of conidia. (a) What constitutes water pollution? (b) List the major categories of water pollutants. When collecting samples from the environment, why is it necessary to include a...
Water can be polluted by different groups of contaminants or sources of contamination. Agricultural, industrial and municipal discharge are the main three sources of water pollution. Agricultural run-off and wastewater contain nutrients (nitrogen and phosphorous-...
types.And let’s begin with what's known as “point source pollution”Point source pollution has an identifiable source, and you can find the specific point where, say, one particular pipe is dumping pollutants into the bay—and then treat the water right there where the pollution’s coming...
A. Water pollution. B. Noise pollution. C. Air pollution. 相关知识点: 试题来源: 解析 C 【原文】 W: There is a lot of pollution around us today such as air pollution, noise pollution and water pollution. M: You are right. Air pollution is the most serious in our town.反馈...
百度试题 结果1 题目 Air pollution and water pollution are the two causes of the problem that many parts of the world have become deserts( ) 相关知识点: 试题来源: 解析 错误 反馈 收藏
Section Two The Water Pollution Incident in the Rhine Shocked at Home and Abroad This course uses case studies and seminars to explore the occurrence of and responses to major environmental emergencies both at home and abroad, such as the Rhine River pol
Pollution of drinking water sources with agrochemicals is often a major threat to human and ecosystem health in some river deltas, where agricultural production must meet the requirements of national food security or export aspirations. This study was performed to survey the use of different drinking...