تفاصيل الكتاب
تنسيق
غلاف ورقي
صفحات
64
لغة
الإنجليزية
منشور
May 19, 1995
الناشر
HarperCollins
رقم ISBN-10
0688041582
رقم ISBN-13
9780688041588
الوصف
Miles overhead, a thin layer of ozone gas blankets the earth, shielding life on the surface from the sun's deadly ultraviolet radiation. But this protective cover is shrinking, destroyed by chemicals released into the atmosphere. As a result, more UV rays now reach the ground, and skin cancer is on the rise.