Sign up now
to enroll in courses, follow best educators, interact with the community and track your progress.
June, Dec 2016, Jan, Nov 2017 MCQs with Related Notes (in Hindi)
plz clear me maam a questions that is among the following fuel of energy which is most environmental friendly a) biogas b) hydrogen c) ethanol . why the hydrogen cannot be a real answer of this question
Raveena Singh
a year ago
because hydrogen is the clean fuel