The answer is A.
When a substance is a gas, it fills its container no matter how many particles it's made of, however the number of particles present will directly affect the pressure and temperature of the system.
V=IR
60-V
The current that passes through a 10-ohm resistor = I
I=60/10
6 amperes
They were produced inside stars.
There are many factors that increase the rate of reaction like concentration of reactants, atmosphere, presence or absence of catalyst, nature of reactants etc.
The factor usually does not increase the rate of reaction is lowering the temperature. But if we increase the temperature during reaction may be it increase the rate of reaction.
The correct answer is C.
W=force into distance.
Option B states that "balanced forces act on on object and cause movement in direction of these force" which is against the laws of physics.
Option A is wrong because work is the product of force into distance,its not time.
Option D says that work is distance over time,which is wrong as:
speed=distance/time
So your left with option C