What is drug addition?full explanation plz help me ...​

A drug addiction is where a person would want a chemical substance more than it needs to be used. This would be called an overdose. Therefore, the addiction comes from a person "abusing" the power of the chemical substance using it incorrectly on their selves.

Explanation:

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.