Convection currents in the earth’s mantle are responsible for the movement of tectonic plates. as shown in the diagram, heat from the earth’s core is the driving force that moves magma in a circular motion called "cells.” how is this circular motion achieved? heat ‘"pushes" the magma up, and when it hits the lithosphere it is pushed back down towards the core. heated magma is magnetic and is drawn to the lithosphere where it loses its magnetic force and drops back down due to gravity. heated magma rises from the core, but rocks in the asthenosphere block the magma on each side, causing it to move in small circles. hot magma rises and pushes up toward the lithosphere, and as it cools it cycles back down toward the core to be heated again.
Answers: 2
Chemistry, 21.06.2019 23:00
The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call
Answers: 1
Chemistry, 22.06.2019 06:00
If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?
Answers: 3
Chemistry, 22.06.2019 09:00
Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?
Answers: 3
Chemistry, 22.06.2019 09:40
How many grams of aluminum will there be in 98g of al2o3?
Answers: 1
Convection currents in the earth’s mantle are responsible for the movement of tectonic plates. as sh...
Health, 30.07.2019 04:50
Mathematics, 30.07.2019 04:50
Social Studies, 30.07.2019 04:50
History, 30.07.2019 04:50
Social Studies, 30.07.2019 04:50
Advanced Placement (AP), 30.07.2019 04:50
Arts, 30.07.2019 04:50
Mathematics, 30.07.2019 04:50
Geography, 30.07.2019 04:50