Geology quiz 1

Which of the following is evidence for continental drift that was given by Alfred Wegner?

A. The shape of continents.

B. The distribution of key groups of terrestrial fossils.

C. Patterns of magnetic fields surrounding mid-ocean ridges.

D. A and b

E. a, b and c

Which was used to provide evidence for sea-floor spreading

A. The shape of continents.

B. The distribution of key groups of terrestrial fossils.

C. Patterns of magnetic fields surrounding mid-ocean ridges.

D. A and b

E. a, b and c

What was the significance of the theory of sea-floor spreading?

A. It is an outdated idea that competed with Wegner's continental drift.

B. It is a component of Plate tectonic theory that helps explain why continents move.

C. It was the missing mechanism that validated Wegner's ideas about continental movement.

D. a & c

E. b & c

Which of the following phrases is true about a mineral?

Which of the following drives plate motion?

Convection currents within the outer core

Convection currents within the rock in the mantle

Convection currents within magma in the mantle

What does it mean when two atoms are connected by a covalent bond?

They are sharing electrons

One atom "robs" an electron from another creating two atoms having opposite electric charges

Two ions having the same charge are attracted to each other

All

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