The layer of comparatively cool, hard rocks that cover the uppermost part of the mantle.

The Pacific Ring of Fire is an arc around the Pacific Ocean where many volcanoes and earthquakes are formed.

What evidence did Alfred Wegener use to support his theory of continental drift?

What is true of tectonic plates?

What is the best description of the paths of S waves and P waves?

The observation that the continents fit together like puzzle pieces is called

The Earth's continents were once connected in one giant continent called

Scientists found that the continents were moving apart from each other due to magma rising out of mid-ocean ridges, and they called this

Which of the following was the main reason why scientists did not accept Wegener's hypothesis?

A seismologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes the earth and other terrestrial planets, as well as the processes that shape them

The Mohorovicic discontinuity was discovered by studying the behavior of _______

Which is not a driving force that influences the movement of tectonic plates?

The supercontinent from where present continents came from is called ______

Which is not a primary plate?

According to the theory of Harry Hess, continents move because of _____.

The space between two tectonic plates is called ______.

According to the theory of plate tectonics, Which layer of Earth is made up of plates

When the force of gravity pulls a lithospheric plate downward and away from a ridge pushing it toward a trench.

When the force of subduction and gravity moves a lithospheric plate downward into a trench and pulls it away from a ridge.

The Mohorovicic discontinuity was discovered by studying the behavior of _____________.

Which is not a Driving force that influences the movement of tectonic plates?

Which resisting force of plate movement opposes the slab pull?

In proposing the continental drift theory, Alfred Wegener noted the matching coastlines of which two continents?

•What evidence did Alfred Wegener use to support his theory of continental drift?

Which theory posits that the geographical features of Earth’s surface is the result of the contraction and wrinkling of the planet as it cooled down?