Geology

Question 1

Which geologic era began with the Triassic period, when the dinosaurs evolved?

Answer 1

Dinosaurs ruled the earth during the Mesozoic Era.

Question 2

In 1912 Alfred Wegener proposed this theory of geological movement that was an important precursor to the concept of plate tectonics.

Answer 2

Continental Drift

Question 3

This type of rock comprises over 90% of all volcanic rock on Earth. It is formed by the rapid cooling of magnesium-rich and iron-rich lava on the surface.

Answer 3

Basalt

Question 4

What is the most common metal found in the earth’s crust?

Answer 4

Aluminum

Question 5

What’s the Latin-derived name for the organic material in soil, often the topmost layer of topsoil?

Answer 5

Topsoil generally contains little hummus, but a considerable amount of humus.

Question 6

The geological term sial refers to the rocks that lie in the uppermost layer of the earth’s crust, beneath landmasses, whose most abundant minerals contain what two elements that are adjacent on the periodic table?

Answer 6

Silicon, Aluminum

Question 7

In geology, this term indicates a deep V-shaped valley formed by erosion

Answer 7

Gulch