This question is not specific enough to answer. Please specify who 'we' is and rephrase the question.
Rocks have been formed throughout history and, indeed, are being formed today
Scientists today study rocks from all eras.
Paleozoic. I just took the test.
APEX :P
Paleozoic
Scientists who study rocks are called petrologists.
Yes. Rock formed in the Mesozoic just like they did at all times in earth's history.
Rocks are formed when magma cools.
The study of rocks is is called geology but a person who study's them is called a petrologist
Most rocks from that era are deeply buried.
Scientists who study rocks are called petrologists.
Scientists who study rocks are called petrologists.
Since extrusive rocks are formed by lava (not magma), the rocks can be found easier because they are on the surface, whereas intrusive rocks are formed underground so they are either harder to get to or they are found in smaller quantities.
Relative dating. (do your own study island)
I think moons formed like this: rocks floating around space all joined together to make a moon. Interesting theory but that is simply how you believe it formed. I am wondering what era it formed in, regardless of how they formed.(: Oh, well, probably before the earth was made.
Yes. Rock formed in the Mesozoic just like they did at all times in earth's history.
Rocks are formed when magma cools.
Metamorphic rocks are naturally formed. they are formed from natural changes that happen to other rocks.
Sedimentary rocks are formed from the earths surface when sediments hardens into rocks :]
a geologist studies rocks, but volcanologists study volcanic rocks
Minerals are formed first then rocks
The study of rocks is is called geology but a person who study's them is called a petrologist