GEO 102 (Exam 1) Dr. Wenner

Earthquakes are most common among?

The lithospheric mantle is about _____ thick

______ purposed the idea that the continents used to all be connected.

The outermost layer of the earth is called the?

The core consists mostly of what TWO minerals? (Select Two Answers)

Relative to today; the climate twenty thousand years ago was?

The oceanic crust is _____ dense then the continental crust?

The ________ is located under the lithosphere?

The crust and the uppermost mantle combined to be called?

Oceanic crust is on average about ______ thick

The average thickness of the continental crust is _______ thick

Observations are?

Pressure deep within the earth deforms rocks into _______ rocks?

The current time period we are living in today is called?

Continental crust is composed mostly of?

What part of the core is in a molten state?

Oceans cover _____% of earths surface.

Animals having hard shells first appeared in what era?

The largest time period when dinosaurs roamed the planet was called?

The oceanic crust is composed of mostly?

The sphere which includes life and all the places it can exist is called the?

________ rocks for on earths surface as a result of moving water, air, and ice.

The curves in chains of islands are called?

Which is the oldest era?

The upper mantle is composed mostly of a mineral called?

______ rocks are formed from cooled and solidified magma.

Geologist's measure the speed of plate movement using what unit of measurement?

The theory of ______ purposed by Hess and Dietz led to the acceptance of continental drift.

The hypothesis that was purposed that states all the continents used to fit together is called?

The earth is roughly _____ years old?

The ______ includes water in all of its expressions