Question

9. The question has come to the mind of Gurvinder that the rocket probably also uses fossil fuels such as petrol and diesel. Next day upon asking the teacher, the teacher said that a gas is used in liquid form as a fuel in the rocket. Which gas is it?
a. Argon
b. Hydrogen
c. Nitrogen
d. Carbon Dioxide​

Answer 1

Answer:

ipropellant liquid rockets generally use a liquid fuel, such as liquid hydrogen or a hydrocarbon fuel such as RP-1, and a liquid oxidizer, such as liquid oxygen.

Explanation:

please check if this anwer

please mark me brainlest

Answer 2

Answer:

hydrogen is a correct answer