Week 3 Plate Tectonics

What is directly responsible for the movement of the tectonic plates?

• Convection currents in the mantle

• Convection currents in the outer core

• Volcanic activity at the plate boundaries

• Magma generation in the mid oceanic ridge

What is the best explanation of "jigsaw puzzle" fitting of continents?

• Shape of continents' coastlines are about the same.

• Elevation of continents' coastlines are about the same

• Same species fossils of the same age are found in different continents

• Same sedimentary rocks of the same age are found in different continents.

Which TWO (2) of the following decribes about "sea floor spreading"?

• It occurs at the mid oceanic ridges.

• New crustal rocks are generated here.

• It occurs at the continental rifts.

• It involves the stretching of continental lithosphere.

Which TWO (2) of the following are real examples of tectonic plates?

• Nazca Plate

• Eurasian Plate

• Bornean Plate

• Hawaiian Plate

How do geologists identify and locate plate boundaries?

• Studying earthquake activities

• Studying sea floor level

• Studying sea level

• Studying tsunami activities

Which of the following is NOT a classification of plate boundaries?

• Translate boundary

• Divergent boundary

• Convergent boundary

• Transform boundary

Which one occurs first? Mid oceanic ridge OR continental rift?

• Mid oceanic ridge

• Continental rift

How is continental-continental convergent boundary different from oceanic-continental convergent boundary?

• Crust thickness

• Volcanic activity

• Elevation of mountain chains

What are the characteristics of mid oceanic ridge transform fault?

• It is small in size.

• It offsets the mid ocean ridges.

• It is large in size.

• It generates more deadly earthquakes.

Which occurs first in the formation of continental rifting?

• Stretching of continental lithosphere

• Rocks break and extensioanl faults form.

• Crust subsides and rift vally forms.

• Sea floor spreading