How can we utilize the human waste cake which is the bye product of sewage treatment plant process? Is that usable? How can it be disposed if it is not usable?

أفضل جواب: <p>The Ans. is b.</p> الإطلاع على المزيد

أفضل جواب: <p>I think, its a big type topic to discuss.</p> الإطلاع على المزيد

أفضل جواب: <p> </p> <p><span><span><span>Hello Fadi, Thank you for your reply.&l ... الإطلاع على المزيد

أفضل جواب: A product design process is a set of technical activities within the product development process that wor ... الإطلاع على المزيد