Chapter 8a Review Plate Tectonics Question Preview (ID: 38965)

a) The seafloor pushes together and forms a mountain

b) The seafloor spreads apart, magma rises and forms new crust called ocean ridges

c) The seafloor spreads and the ocean sinks down into Earth

d) The seafloor pushes together and forms ocean ridges

a) Pangaea represents all continents connected as one, continental drift says the continents were once connected as one

b) Pangaea is not part of Wegener’s theory of continental drift

c) Pangaea is part of Wegener’s theory on space not continental drift

d) Pangaea means half of Earth so it supports Wegener’s theory of continental drift

a) A theory that dinosaurs once lived on Earth

b) Part of Wegener’s theory about continental drift, he felt all continents once fit together like a puzzle

c) Part of Wegener’s theory about continental drift, he thinks the continents were never connected, and will never connect again

d) None of the above

a) The east coast of Africa

b) The south coast of Africa

c) The west coast of S. America

d) The west coast of Africa

a) Inner core

b) Outer core

c) Mantle

d) Crust

a) Earth’s crust and the upper or solid part of the mantle

b) Earth’s crust and the entire mantle

c) Earth’s crust and the outer core

d) Earth’s crust and the inner core

a) Conduction in the mantle

b) Convection currents in the mantle

c) Conduction in the crust

d) Convection currents in the crust

a) In the outer core

b) On top of the outer core

c) On top of the crust

d) On top of the lower mantle

a) A cold blue solid

b) A hot blue solid

c) A very dense hot liquid

d) A hot solid

a) A low area with a river running through it

b) An area of raised flat land

c) A grassy mountain

d) A large raised pointed mountain