Predict which molecules are more strongly attracted to one another—c 3 h 8 o molecules that make up liquid rubbing alcohol or ch 4 molecules that make up methane gas?

C3H8O is referring to propan-2-ol, which is rubbing alcohol.

propan-2-ol has a -OH group while CH4 does not.

As the electronegativity difference between oxygen and hydrogen is high and each oxygen atom in propan-2-ol molecules has 2 lone pairs, it can form hydrogen bonds. Oxygen will bond with hydrogen atom in -OH in another molecule of propan-2-ol

Combustion is the act or process of burning. therefore, i believe the answer is  a: burning wood. 

The answer is tea due to the main ingredient being a herb that grows from the ground and sugar that grows from a stalk, i hope this : )     p.s.  can i be brainliest?