Junk is anything that is considered worthless or with a very low value.
What some people consider junk other people may not.
Lint is a collection of very short fabric fibers that have broken off clothing and linen as it is being used. Lint tends to collect inside washing machines, dryers, the inside of pockets and even in your belly button.
Pis forPencil shavings
Pollution is something that is introduced into an environment that has a bad effect on that environment. Pollution can be industrial wastes, smoke, fumes, car exhaust, rubbish, excess light or heat.
