Question 29: Which of the following building materials are used to protect the environment and ensure sustainable development? 12/28/2021 by admin Leave a Comment Question 29: Which of the following building materials are used to protect the environment and ensure sustainable development? A. Natural wood B. Metals C. Unburnt bricks D. Refractory bricks Unburnt brick building materials are used to protect the environment and ensure sustainable development ===============
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