Why is taking a high dose of a single mineral dangerous?

Write a paragraph about why the respiratory system is important and we need to breathe easily. (guys i really need ) x(

How can people get cancer? what types of cancer are there? plz i’ll mark u brainliest

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the dependent variable in galileo's experiment?