更多"The acid rain destroys the protecti"的相关试题:
[填空题]The acid rain destroys the protection on tree leaves, which makes the plants more vulnerable to disease.
[填空题]results in "Acid rain"
[单项选择] Researchers generally agree that acid rain arises primarily from the burning of coal and oil. The emissions contain oxides of nitrogen and sulfur, which can be carried hundreds of miles on the prevailing westernly winds. They eventually return to earth as dry gases and particulates and react with ground waters to form nitride or sulfuric acid. They may also be converted to the acids in the atmosphere by chemical processes that are still not fully understood.
However the acids are formed, they have already been charged with a substantial list of damages. Corrosion of metal structures in windward areas of the country has been well-documented, but is a relatively minor entry on the list. Other forms of damage are far more insidious and longer-lasting. There is evidence, for example, that the acids leach heavy metals--aluminum, lead, and mercury-from the soil, which then poison plant roots and deprive them of vital nutrients. In lakes and rivers the acid alters the blood chemistry i
A. poisoning of plant roots
B. leaching of heavy metals
C. changing the blood chemistry in
D. corrosion of metal structures
[填空题]Acid rain is produced when atmospheric moisture combines with pollutants from paper mill (造纸厂) , factories and automobiles.