Question

What do typing on a computer, lifting a box, and putting on a sweater have in common?

Answer 1

For each one . . .

-- some part of your body has to move

-- you convert some chemical energy into kinetic energy when you make muscles move

-- a human being can do it but an animal can't.

Wellll, maybe a monkey can lift a box. 2 out of 3 ain't too bad.