The solution to the problem of acid rain is perhaps one of the main environmental and political issues facing the peoples of the industrialized nations, and their neighbours today. There is no doubt about the damage which acid rain has caused, but what remains unclear are the precise causes ...
根据第二段最后两句 "Normal rainwater has a PH of 5.6.When the PH level of rainwater goes below 5.6.it is considered acid rain. (正常的雨水PH值为5.6。当雨水PH值低于5.6时。它被认为是酸雨。)" 可知,正常的雨水PH值为5.6,当雨水的PH值低干5.6时,我们称之为酸雨,故选C。 (4)C.主旨大意题。
According to the passage, acid rain is A.a source of pollution.B.an effect of industrialization.C.an advantage of industrial society.D.a deposition of fossil fuels. 答案 B[题解] 本题是细节题。文章开头第一段里,就说明了酸雨是工业化的结果。One of the adverse effects of industrialization is ...
2) stormwater problem 雨水问题3) acid rain 酸雨 1. Numerical simulation of the meteorological conditions for a typical acid rain process in South China area; 华南地区典型酸雨过程气象条件的数值模拟 2. Effects of acid rain on the invasion of non-native plants; 酸雨对外来植物入侵的影响 3....
and they fall to earth asacid rain.Acid rain is a serious environmental problem in parts of the world where there are many factories, power plants, and automobiles close together, as in parts of the United States, Canada, Europe, and Asia. It harms forests and soils and pollutes lakes and...
1.Why do we say acid rain is a kind of pollution? [] A.Because it is a big problem in Canada and the U.S. B.Because fish and water plants have died from it. C.Because it is also harmful(有害的)to trees and buildings.
Acid rain(酸雨)is a kind of pollution.It is a big problem in eastern Canada and the northern part of the U.S.Canada is working hard to reduce(减少)acid rain in this country.The Canadiangovernment wants the US to help too. More than half of Canada acid rain comes from the US.Acid ...
19 Which reaction does not contribute to the problem of acid rain? C A the combustion of fossil fuels B the oxidation of sulfur dioxide to sulfur trioxide catalysed by nitrogen dioxide C the reaction between nitrogen monoxide and carbon monoxide in a catalytic converter D the reaction of sulfur...
In the action of acid rain, nutrient elements in soil potassium, sodium, calcium, magnesium is released, and as the rain is leached out. So the term acid rain causes large amounts of nutrients in the soil to be leaching, caused acute shortage of nutrients in the soil, so that the soil...
a酸雨的危害 Acid rain harm[translate] a□ 酸雨危害是多方面的,包括对人体健康、生态系统和建筑设施都有直接和潜在的危害。酸雨可使儿童免疫功能下降,慢性咽炎、支气管哮喘发病率增加,同时可使老人眼部、呼吸道患病率增加。酸雨还可使农作物大幅度减产,特别是小麦,在酸雨影响下,可减产 13% 至 34%。大豆、蔬菜...