Covering buildings with ___ ___ protects them against acid rain

Covering buildings with ___ ___ protects them against acid rain . So as you can see the actions to take into consideration in order to succeed in the game are simple. First, read carefully the given fact and try to guess the possible correct answers that make sense. If you can not guess the fact then try out your word searching skills by combining the given letters to make valid words.

Covering buildings with ___ ___ protects them against acid rain

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