Mining companies have technology that can detect rock formations underneath Earth’s outer layer. One mining company detects an igneous rock formation underneath Earth’s outer layer. The geologists working for the company wonder if the material in this igneous rock used to be a sedimentary rock on Earth’s surface. Can material in sedimentary rock become an igneous rock? Explain your answer.

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction