The answer is D I'm 100% sure!
It results in air pollution because the emission of greenhouse gases
Crystalline silica is a natural compound in the earth's crust and is a basic component of sand and granite. Silicosis is an incurable disease of the lungs caused by breathing crystalline silica dust. This dust can cause scar tissue to form in the lungs.
Answer:
Albert Einstein's theory of general relativity
Sweetflags, Water Plantains, Big blue stems, Bushy Beards, and Marsh Marygolds.
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