Solid Earth #4 Question Preview (ID: 15278)


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When plates grind (slip) past each other in opposite directions forms a
a) transform boundary
b) convergent boundary
c) subduction zone
d) divergent boundary

Convection currents occur because heated material becomes
a) less dense and rises
b) denser and rises
c) denser and sinks
d) less dense and sinks

in sea - floor spreading, molten material rises from the mantle and erupts
a) along the edges of all the continents
b) along the mid - ocean ridges
c) in deep - ocean trenches
d) at the north and south poles

Which of the following process brings rocks to Earth surface, where they can be eroded?
a) deposition
b) erosion
c) weathering
d) uplifting

Which of the following is the best evidense that Earth's continents were once in vastly different positions than they are today?
a) penguins are found only in the Southern Hemisphere
b) fossils of tropical plants are found in Antartica
c) volcanoes encircle the Pacific Ocean
d) major rivers form deltas from continental erosion

Continental crust consists mostly of the rock
a) marble
b) granite
c) basalt
d) limestone

Most geologist think that the movement of Earth's plates caused by
a) conduction
b) earthquakes
c) convection currents in the mantle
d) Earth's magnetic field

A break in Earth's crust where rocks have slipped past each other is called a
a) plate
b) boundary
c) layer
d) fault

During the Rise of Life,
a) the super continent broke apart
b) an asteroid collided with earth
c) a great number of different organisms evolved
d) mammals spread into every environment on Earth

The formation of the ozone layer allowed plants and animals to move out of the water and onto land during the
a) Precambrian Time
b) Paleozoic Era
c) Mesozoic Era
d) Cenozoic Era

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