A front that forms when a warm air mass is trapped between cold air masses and is forced to rise is called a(n)

What is the difference between external & internal migration

Eastern europe’s population growth can be attributed to these factors. select all that apply migration

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.