10th August is observed as a ___________.

1.	10th August is observed as a ___________.
Answer» Every year 10th August is observed as World Bio-Fuel Day in a bid to create awareness about non-fossil-fuels (Green Fuels). On this day in 1893, Sir Rudolph Diesel (inventor of the diesel engine) for the first time successfully ran the mechanical engine with Peanut Oil.

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