IF this is about why some get more cavities than others, it's usually NOT about their teeth being harder. The main drivers behind getting cavities or not are eating habits - frequent snacking is bad - and body chemistry. The pH of your saliva has a big influence on your mouth health. Acidic saliva - bad for teeth. Alkaline saliva - good for teeth. Brushing and flossing regularly also help teeth health.
No, because everyones teeth grows in different ways, some peoples teeth might be straight and others might be crooked but its not there fault.
Everybodys differant. Peoples teeth sometimes begin to fall out or "move" in a late age. And some peoples begin in an early age. Its unpredictable. Sorry.
the harder you play the harder it is to get out
13
because some are prey and some are predators
It's like a massage; some like it harder than others.
Rain will sometimes fall harder in some spots then in others. This means that the cloud above is more dense with water then the other clouds.
It depends on what they eat
teeth
Not all people get their wisdom teeth. Some get all four wisdom teeth, some get just one, and others have some that never erupt.
Some people teeth are crooked for many reasons. Because of this, orthodontists created braces to align a peoples teeth back in correct.
This happens because differentiated teeth is what God wanted.