Isaac wants to make s'mores. He holds a marshmallow on a metal skewer over a fire. A few seconds later, the marshmallow is cooked and the skewer feels warm. What most likely happened? A. The fire heated the surrounding air, which cooked the marshmallow.
B. The heat generated from the marshmallow flowed in the form of thermal energy to the skewer and fire.
C. The heat from the skewer cooked the marshmallow.
D. Thermal energy in the form of heat moved from the fire to the skewer and marshmallow.
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reserve is the answer

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

it's a b and