What is magnesium oxide (a) a molecular compound with properties different from magnesium or oxygen (b) a molecular compound with the same properties as magnesium or oxygen (c) a shiny metal similar to magnesium but with a higher melting point (d) a iconic compound with properties different from magnesium or oxygen

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.