Does the age of a rock have anything to do with its density? would it be more dense or less dense, and why?

How are people today protected from wildfires like the large wildfires like the great fire of 1910are people today protected from large wildfires like the great fire of 1910? plz have the answer. this is important. you

South america is located within which hemisphere?

Name the river that forms a natural border between new york and new jersey and is the site where a passenger jet made a miraculous landing on january 15