Chalk has no contraceptive properties.
Ancient Egyptians used crocodile dung as a contraceptive.
Contraceptive injections are used to avoid pregnancy.
the natural state of 'chalk' is green when they make it It's true , because I'm a person who studies chalk
Yes chalk is permeable so if there is a question about this it is true By a man called James
It is not true that they are marked out in white chalk or paint.
It is not true that they are marked out in white chalk or paint.
Chalk
Chalk is used on the black board because chalk is easy to write with on a black board.
chalk is to stop yourself from slipping or loosing grip
You can use it in homemade toothpaste recipes in place of baking soda. Also used in the construction trade when 'snapping' a chalk line on a board, etc.
The medication Duoloton I is used as a contraceptive. Duoloton comes in pill form and can also be used to regulate menstrual periods.
"Contraceptive" and "birth control" are synonymous. All contraceptives are methods of birth control.