Of the following choices, pick all that are uses for radiation. Check all that apply.
A. Making energy
B. Various medical technologies
C. Dating archeology finds
D. Keeping food preserved

In an energy pyramid, which level has the most available energy?

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.