On the seashore pebbles that are rough and uneven become smooth and rounded explain how they become smooth and rounded

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Adilute aqueous potassium nitrate solution is