On the timeline, an event that happened in 2009 would be <u>To the right of 2000 CE</u>
In the USA, it is in Fort Knox, Kentucky.
In other countries that keep a gold reserve, it is in a similar
guarded, high-security central facility.
A large volume of air that has nearly the same temperature and humidity at different locations at the same altitude is called the Air Mass. Air mass covers hundreds or thousands of square miles and adapt to the characteristics of the surface below them at the same time they are also classified according to latitude and their continental or maritime source regions.
When the earth's tectonic plates shift they move against each other causing an earthquake .
It tells you that there used to be an ocean in the area the rock was found.