6. Заполните пропуски подходящими по смыслу словами, используя их только один раз. There are many (1) _________ in our country that’s why we can’t ignore the problem of (2) _______. Our (3) ________ must be clean. We have to (4) _____ atmospheric and (5) _______ pollution. A lot of (6) __ and (7) ________ are disappearing. Many (8) _______ are dying in the sea. Now we all should be in charge of the (9) _______.