I need y’all’s help please

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied

To separate a mixture of hard candies nd marbles the most efficient method would be

Sheela and her brother hari were sitting in the living room, watching tv. suddenly hari said that he thinks something is burning in the other room. how did he get the burning smell?