Question Mode Multiple Choice Question The two major models for a mechanism to drive plate tectonics are the ridge-push, slab-pull and the convection models. The convection model relies on between the top of the convecting cell and the base of the lithospheric plate, and the push/pull model relies on the ridge and pushing the plate outward as the ridge falls in elevation. Multiple choice question.

The red square is a famous historical site that is located in

Look at the data above. provide an explanation for europe’s projected population decrease by the year 2050. (i'm doing this for future kids) the answer is : the percentage of people over the age of 65 and under the age of 15 in europe is currently the same at 16% each. therefore, the majority of the population is between the ages of 16 and 64. in forty years from now, in 2050, a greater percentage of the population will be over the age of 65. europe also has a relatively long life expectancy of 75 years. this, combined with a low birth rate means that by 2050 europe’s population will actually be less than it is today.

Indicates how many people live in an area