Question

Which one of the following substances is a liquid fuel used in rocket engines?

a. Liquid oxygen
b. Amnonia
c. Condium nitrate
d. Potassium

Answer 1

Condium nitrate

Step-by-step explanation:

while I do believe it's A if this is for PennFoster I'm almost positive they are looking for C.

Answer 2

Liquid oxygen can be used as an oxidizer in rocket fuel as one of two propellants needed.