9 weeks exam

Type your name in the blank

Mountains are most likely formed... Mark only one oval.

• when glaciers melt.

• from earthquakes.

• along transform boundaries.

• along convergent boundaries.

What evidence is used to support the theory of continental drift and seafloor spreading? Mark only one oval.

• The color and shape of continents, and early Spanish explorers.

• The shape of the continents, along with fossils, climate change and the Theory of Plate Tectonics

• We know from ancient scientists and cave drawings.

• Humans communicate with dolphins for Earthly secrets.

Seafloor spreading occurs at which of the following type of tectonic plate boundaries? Mark only one oval.

• transform

• convergent

• divergent

• strike-slip

Which scientist proposed the hypothesis of continental drift? Mark only one oval.

• Harry Hess

• Drummond Matthews

• Fred Vine

• Alfred Wegener

Why were some scientists skeptical (did not agree) of the hypothesis of continental drift? Mark only one oval.

• They found evidence of colder climates on continents that are warm today.

• They did not know what caused similar rock formations on different continents.

• They did not know what forces caused the continents to move.

• They found fossils of similar organisms on several continents.

Why do continents move? Mark only one oval.

• because of centrifugal force from Earth's rotation

• because the continents push through the mantle

• because of the gravitational force that creates tides

• because the seafloor spreads along the mid-ocean ridge

Which layer of Earth's surface behaves like plastic? Mark only one oval.

• asthenosphere

• lithosphere

• crust

• mantle

What features form due to the movement of Earth's Tectonic plates? Mark only one oval.

• forms mountains

• forms ocean trenches

• causes volcanoes

• all answers are correct

What type of plate boundary is most likely to occur at point A in the diagram?

• transform

• divergent

• reverse

• convergent