The silicate mineral that is found in the greatest variety of igneous rocks of various compositions is . Group of answer choices plagioclase pyroxene olivine quartz

Japan is a group of four islands off the coast of asia. what effect do you think has had on the lives of the japanese?

Volcanic irruption is most likely to be violent when a) volcanoes near to the sea b) the neck of the volcano is sealed by a plug c) the lava is viscous d) the lava reaches the surface through a fissure e) the volcano is on the ocean floor

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today