Look at the section of the periodic table shown below. Which of the following elements is a metalloid with moderate reactivity?

Energy derived from hot rocks and fluids beneath the earth’s surface is

What field of science did harry hess study?

Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere