(1) Environment is the place where we live. (2) Since ancient time nature (SERVE) ________ man, being the source of his life.
(3) Interference of the society in nature has increased because of the development of civilization. (4) Our ecology becomes worse and worse with every new day. (5) Many species of animals and birds (DISAPPEAR) ________ nowadays.
(6) People cut down trees to make furniture, (FORGET) ________ that people can't live without trees and plants, because they fill air with oxygen.
(7) There are a lot of ecological problems. (8) The most serious ecological problems are: noise from cars and buses; destruction of wildlife and countryside beauty; shortage of natural resources; the growth of population; pollution in its many forms. (9) Water is everywhere, but there is no ocean or sea which is not used as a dump. (10) Many rivers and lakes (POISON) ________ too.
(11) Another problem is growth of population. (12) There (BE) ________ not enough place to live. (13) People need more water, more food. (14) It is very difficult to solve this problem.
(15) Also, one of the most serious problems is greenhouse effect. (16) It works like this: sunlight gives us heat. (17) Some of the heat warms the atmosphere and some of the heat (GO) ________ back into space. (18) Nowadays the heat can't go into space. (19) That's why winter and summer temperatures in many places have become (HIGH) ________.
(20) If the temperature (CONTINUE) ________ growing up the snow on the mountains and ice will melt, so the most of the earth will be under water. (21) The benefits to the environment of opting for solar-powered energy sources are considered because the by-products of the converting process (INVOLVE) ________ in turning the sun into energy are practically non-existent.
(22) So every person has to understand how important it is to solve these problems, which endanger people's life.
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