maybe, a cracking voice is a sign of a changing voice but if you voice is as high as you say it may not drop the way you want
It is normal for a boy to have freak waves of change in his voice pattern when it is breaking. It will settle down shortly and be deeper.
It is hard and sometimes not possible to repair cracks in mirrors. Small cracks can sometimes be repaired with a glass repair kit.
Technically, if you look into a broken mirror, you will see cracks, and the unreflected background to which some mirrors are glued to and your reflection distorted from the cracks and broken pieces.
This can sometimes happen when water finds a way into cracks, which then freezes, expands, and this process repeats, making cracks.
Magma can use cracks that are already there on it way to the surface. If there are no cracks present, the magma can create them.
Bones. If they have cracks in their bones, then the cracks will show up on an X-ray.
They can be inspected for cracks, weak shells, broken yolks, and blood spots by shining a flashlight through the egg and if you see anything then it is a bad egg!
There are sometimes cracks that mice squeeze through
Water gets into cracks in the rock, the rock cracks, turns to ice and expands so the rock splits into smaller pieces.. =]
you cant really. often they break and theres really no indication of a problem except that it is broken. very old belts (130,000 miles perhaps) sometimes have cracks on them but to see the cracks you have to do about a third of the job of replacing it. its best just to have it replaced at the factory designated interval, (90,000 miles).
known as frost wedging
If the slider moves, but the air location does not change, I would check for a broken vacuum line under the hood. Sometimes the plastic tubing dries out and cracks.
because the stone is easily broken . specially those are small stone .