Which subatomic particle will be attracted by a positively charged object?
a) proton
b) neutron
c) electron
d) positron

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?