Which has less inertia, a bicycle or a train? a. bicycle b. train c. all matter has equal inertia d. neither has any inertia on earth

Nertia is basically how difficult to stop or change an objects direction, and the more mass an object has, the more momentum it has and the greater force is needed to change it's velocity.  In other words train is the answer 

It indicates no change in temperature and the process of matter changing its state

Electricity and discharge