Question

While cooking, if the bottom of the vessel is getting blackened on the outside
it means that
(a) the food is not cooked completely .
(b) the fuel is not burning completely.
(c) the fuel is wet.
(d) the fuel is burning completely.
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Answer 1

Answer:

good night dear have sweet dream

Explanation:

Answer 2

Answer:

b is anwer

if fuel not burning completely the bottom of vessel will be blackened due to the air holes are getting blocked..

hope helps you