Ever since man started burning wood or other organic matter to keep warm and to cook food, he has been using biomass energy. Biomass is a form of fuel derived directly or indirectly from residues, and dung. Today, we still surprise that experts are looking into ways on how to improve their energy efficiency.
Read more: http://www.bukisa.com/articles/357356_powerful-when-dry#ixzz107tPBs6d
Read more: http://www.bukisa.com/articles/357356_powerful-when-dry#ixzz107tPBs6d
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