A mining company is interested in monazite, a mineral substance that forms in igneous rock in Earth’s interior. They think they found a lot of monazite in a sedimentary rock formation on Earth’s surface. Could this really be monazite? If so, how could the monazite have become part of sedimentary rock?

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.