Which one of the following substances is a liquid fuel used in rocket engines?
a. potassium perchlorate
b. liquid oxygen
c. ammonia
d. codium nitrate

The answer for #3 is c but i don't know why

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

Name the intersection of plane bpq and plane cpq.