Fill in the blanks.
(a) Coal is one of the………….used to cook food.
(b) When heated in air, coal burns and produces mainly ……….gas.
(c) Coal tar is a black, thick ……….with an …………. smell.
(d) Petroleum, ………….. and ……….. are fossil fuels.
(e) Forests and coal are ……….. natural resources.

AcademicChemistryNCERTClass 8

(a) Coal is one of the fuels used to cook food.

(b) When heated in air, coal burns and produces mainly carbon dioxide gas.

(c) Coal tar is a black, thick liquid with an unpleasant smell.

(d) Petroleum, coal and natural gas are fossil fuels.

(e) Forests and coal are exhaustible natural resources.

raja
Updated on 10-Oct-2022 13:25:35

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