Over time, pressure continues to build in the tectonic plates, until suddenly, they shift in an earthquake. Aftershocks are common, but then a long time can pass before another one becomes likely.
A push factor is somthing that make imagrints move from their
countries and things that usally cause this are things
like......laws,or things that the imagrints dont like. a pull
factor is somthing that make imagrints want to move to a certain
place with what they think is better for them. for reasons
like......jobs,freedom,rights,money,and laws.
I think is Asia, but I could be wrong
(but it probably is so yei)
The answer for "What is petrified wood made of?" would be minerals.
