4. Keywords. Complete the sentences using these key words from the text.
(§1) environmental issues, to cause, pollution, destroy, the ozone layer, (to) contribute to, the greenhouse effect, a threat
1.______ _____ is when the Earth’s atmosphere becomes full of gases and some substances (вещества) which allow incoming sunlight to pass through but retain (задерживать) heat radiated back from the surface.
2._____ means to break up or spoil completely, to put an end to.
3._____ is to give something or to help make something happen.
4._____ ____ are harmful effects of human activity on the biophysical environment. 5. ______ - something that is a possible source of harm or danger.
6._____ is introducing into the environment something dirty, unclean having a harmful effect.
7._____ ____ the layer of air around the earth with high concentration of ozone.
8._____ is to make something, especially something bad, happen.
(§2) acid rain, rainforest(s), endangered species, disaster, to be affected by smth/smb, to increase
9._____ ____ a group of living organisms which is in danger of dying.
10.______ - a situation that results in great harm or death.
11.______ _____ is a result of air pollution when gases (nitrogen oxides and sulphur dioxide) react with water in clouds.
12._______ to become larger in amount or size.
13._____ to be under the influence (влияние) of something or someone.
14.______ _____ is a dense forest rich in biodiversity found in tropical areas with heavy rainfall.
(§3) environmental protection , fossil fuel, alternative energy, consumption, efficient, (to) conserve, waste, (to) join, (to) adopt
15._____ the action of using up a resource.
16.______ - to connect or link things together.
17._____ _____ is any source of energy other than fossil fuels.
18._____ -unwanted or unusable material.
19._______ - to choose to take up, follow, or use.
20.______ - to protect from harm or destruction.
21.________ is a practice of protecting the natural environment on individual, organizational or governmental levels, for the benefit of both the environment and humans.
22.______ working in a well-organized or competent way, achieving maximum productivity.
23._____ _____is a term used to describe energy sources like coal, oil and natural gas.
5. COMPREHENSION CHECK. Now read the text more attentively and find the answers to the following questions.