7.C10 1 7.R4 What do you know about the hole in the ozone layer? What else would you like to know about it? Write three questions. Read through and see if you can answer your questions. Check these Ozone layer Surround S6 ray • chemical VIDEO The Ozone Lay SUN layer? EARTH the ozone layer over What is the ozone The ozone layer is like a blanket that surrounds the Earth. Ozone (O3) is the main gas in this layer. filters out the harmful rays of the sun 1) allowing only the good rays, which give us light and heat, to reach the Earth. The problem the 1980s, scientists discovered a 2) large hole 3) Antarctica. They found that some chemicals people used 4) I sprays destroyed the ozone layer very quickly. If the hole in the ozone layer continues to grow, our planet 5) danger. The temperature will rise and the sun's rays will becor. ery harmful to · plants will die angle species man our skin and eyes. Animals 6) even become extinct. The solution of countries stopped using some these harmi Although a 7) chemicals in 1987, the ozone layer continues to be in danger. Sa tists are to find ways to help the ozone layer fix itself , 8) the s still a loto work to do. make aerosol The effects . bein
Of course they looks ugly, but they make useful things such as collecting rubbish. But also this insects have disadvantages too and this disadvantages are really very serious! The mail problem of them it's their ability to spread infections.
In conclusion i want to add that we need to overcome problems which connected with insects, but we mustn't kill them, because insects also make a lot of usefull things for us.