The uneven transition zone from the outer core to the mantle is known as the discontinuity.

The yellow river is also known as the huang he river? true or false

Which of the following best describes the circumstance under which countries block the importation of certain products into their country? a. importation blockade b.trade barrier c.trade inhibitor d. domestic protection act

These issues present challenges for regional urban areas. select all that apply. -housing availability -inadequate services -pollution -reduced population -rural migration