you have to solve fourth in detail in your rough copy and send me photo of it
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The ozone layer acts as an invisible shield and protects us from harmful ultraviolet (UV) radiation from the sun. ... Long-term exposure to high levels of UV-B threatens human health and damages most animals, plants and microbes, so the ozone layer protects all life on Earth.Answer. 1)I have found my last book . 2)I have found the book which i had lost . As there was just to make a simple sentence both are correct .ZnO + H2O. The thermal decomposition of zinc hydroxide to produce zinc oxide and water.Margie thought school in older times was fun because all the children gathered around one place I. E. School and learnt from real human teachers unlike the robot teachers and the friends in school also used to talk with each other and had fun.Margie thought school in older times was fun because all the children gathered around one place I. E. School and learnt from real human teachers unlike the robot teachers and the friends in school also used to talk with each other and had fun.