Temperature is a measure of work molecular movement chemical energy potential energy

Option (b) is the correct answer.

Explanation:

Movement of molecules of a substance is dependent on temperature also. This is because energy obtained by an object due to its motion is known as kinetic energy.

Also,    

Hence, kinetic energy is directly proportional to temperature which means that when there is increase in temperature then there will occur an increase in molecular movement of the substance.

Similarly, a decrease in temperature will lead to a decrease in molecular movement of the substance.

Thus, we can conclude that temperature is a measure of molecular movement .

answer; equivalent to a one(1) horsepower motor;

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min