What is the difference in density between the part of the mantle that is closest to the crust (upper mantle) and the part of the mantle that is closest to the outer core (lower mantle)? Explain.

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.

Answer(false);

1b. convection2f. the same