The pronoun IT in that helps to protect it from the sun...

#Questão 484926 - Língua Inglesa, Interpretação de Texto, FUNCAB, 2012, Prefeitura de Valença - RJ, Professor

The pronoun IT in “that helps to protect it from the sun's ultraviolet radiation” (paragraph 3), the pronoun THESE in “and these are often marked ozonefriendly” (paragraph 3), and the pronounTHEYin “and when they are cut down or burned” (paragraph 4), refer in the text, respectively, to:

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