What causes tectonic plates to move?
question 2 options:

convection currents in the mantle are driven by heat leftover from earth's formation and from radioactive materials.

convection currents in the core cause the magnetic poles to flip which drives the tectonic plates.

the density of the continental crust causes it to sink into the earth which pulls on the tectonic plates.

Hich of the following best summarizes the text’s depiction of the ancient indus valley cities (namely harappa and mohenjo-daro)? a. the cities were very plain and simple; the people did not focus on art and architecture, devoting their time instead to agriculture and the bare essentials. b. the cities were adorned, or decorated, with almost overwhelming displays of wealth and artistic architecture. c. the cities were extremely clean, relying on an advanced water and sewer system, though this was mainly constructed for the innermost areas of the cities. d. the cities were clean and peaceful, and they were designed in an extremely organized fashion, using an advanced water and sewer system to keep them this way

Japan is a group of four islands off the coast of asia. what effect do you think has had on the lives of the japanese?

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.