Answers:
Riding a bicycle and sharping a pencil
Explanation:
Gabbro and basalt are two igneous rocks having the same chemical composition, and the same minerals (plagioclase feldspar + pyroxene), but are of different origins. Gabbros form at depths and cool slowly, whereas basalts are volcanic rocks that crystallize rapidly at the surface of the earth.
False. this earth has always had life. be it microscopic cells to a gigantic titanosaurus
Option C would be correct. The organ system can plays many parts at one time. Also, it is the only system listed.
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