Plate Tectonics: Question Preview (ID: 18352)

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A tectonic plate of oceanic crust is colliding with a plate of continental crust. What type of crustal features may form?
a) Volcanic mountain range
b) An arc of volcanoes and volcanic islands
c) A mountain range with no volcanoes
d) A displaced area of transform faults

A student looks at various satellite views of Earth. She sees many large mountain ranges, including the Andes in South America. What statement could the student make after comparing the satellite views with a map of tectonic plates?
a) Mountain ranges only form along a coastline.
b) There are mountains along all plate boundaries.
c) Tectonic boundaries do not form mountains.
d) Mountain ranges are formed along many plate boundaries.

A student is making a model of sea floor spreading. What should the model show on either side of the ridge?
a) Strips of different increasingly older rocks, which repeat as a mirror image on the opposite side of the ridge
b) Rings of volcanoes on either side of the ridge
c) One side of the ridge should have oceanic crust, while the other side of the ridge has continental crust
d) Very thick dense crust

Which of the following statements best explains why earthquakes occur more frequently in California than in Texas?
a) California is located on the opposite side of the same tectonic plate as Texas.
b) The rock in California is sedimentary, while the rock in Texas is igneous.
c) California is located on the boundary of two tectonic plates, while Texas is not.
d) California is located on an oceanic plate, while Texas is located on a continental plate.

Movement of Earth’s tectonic plates can cause the formation of landforms and natural disasters. The movement of tectonic plates is caused by:
a) Weathering, erosion, and deposition
b) Flow of convection currents in the mantle
c) The alignment of the Sun, Earth, and Moon
d) Digging too deep into Earth’s crust

Scientists observe that arcs of volcanoes and volcanic islands are forming in the ocean. What is happening to the tectonic plates?
a) Two tectonic plates of continental crust are converging.
b) Two tectonic plates of oceanic crust are converging.
c) A plate of oceanic crust is converging with a plate of continental crust.
d) Two tectonic plates of oceanic crust are diverging.

A convergent boundary is formed when two tectonic plates meet and push against each other. What type of land form would occur at this type of boundary?
a) canyon
b) mountain
c) coastline
d) plains

Rift valleys form because —
a) a weakness in a tectonic plate is repeatedly filled in with magma
b) one tectonic plate forces itself under another causing tremendous pressure
c) tectonic plates stop moving and weld together in a permanent formation
d) after three tectonic plates come together one of them stops spreading

When the sea floor spreads apart, volcanoes such as those along the Ring of Fire and ridges such as the Mid-Atlantic Ridge are formed because —
a) sediments are deposited where the floor spreads, causing volcanoes
b) as the plates pull apart, magma moves to the surface, building ridges
c) ocean water erodes the weak spots on tectonic plates, building ridges
d) cold ocean water causes fissures that weaken the rocks, causing ridges

Mountains in the Himalayans are increasing in elevation due to —
a) seafloor spreading
b) the action of earthquakes
c) colliding tectonic plates
d) transform faulting of a tectonic plate

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