Welcome to Mr Aslanov’s cefr lessons

H
. Quick Change 
Q1. 
Acid rain moves easily, affecting locations far beyond those that let out the pollution. As a result, this 
global pollution issue causes great debates between countries that fight over polluting each other’s 
environments. The problem is that acid rain, one of the most important environmental problems of all, 
cannot be seen. Some scientists think that human production is primarily responsible, while others cite 
natural causes as well. 
Q2. 
Air pollution has many disastrous effects that need to be curbed. In order to accomplish this, 
governments, scientists and environmentalists are using or testing a variety of methods aimed at reducing 
pollution. There are two main types of pollution control. Input controls are usually more effective than 
output controls. Output controls are also more expensive, making them less desirable to tax payers and 
polluting industries. 
 
Q3. 
Global warming is called the greenhouse effect because the gases that are gathering above the earth 
make the planet comparable to a greenhouse. By trapping heat, the green-
house effect is warming the planet 
and threatening the environment. Current fears stem largely from the fact that global warming is occurring 
at such a rapid pace. Models are predicting that over the next century, the global temperature will rise by 
several degrees. 
Q4. 
Individuals often throw out goods without realizing that they could be dangerous for the environment. 
No matter where people put these materials, there is always a chance that they could find their way into the 
ground, and eventually into our bodies. Special research is necessary to provide data on the effects of every 
chemical as well as to learn how combinations of these chemicals affect human health. 
 
Q5. 
Only a few factors combine to create the problem of ozone layer depletion. The production and 
emission of CFCs, chlorofluorocarbons, is by far the leading cause. Many countries have called for the end 
of CFC production. However, those industries that do use CFCs do not want to discontinue usage of this 
highly valuable industrial chemical. So it’s important to make people realize the disaster CFCs cause in the 
stratosphere. 
Q6. 
Unlike some environmental issues, rainforest depletion has fortunately received significant public and 
media attention. According to some estimates, 50 million acres of rain forest are cut down every year. 
Every year, Brazil chops down an area of forest the size of the state of Nebraska. In Indonesia, Zaire, 
Papua New Guinea, Malaysia, Burma, the Philippines, Peru, Colombia, Bolivia, and Venezuela, rain 
forests that were once great have been lost.