1st 9 Weeks Exam Part 3: Question Preview (ID: 21126)

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Which layer of the Earth is the thinnest?
a) crust b) mantle c) outer core d) inner core
Which information do geologists use to determine the age of the Earth?
a) fossils, layering of rocks, radioactive decay b) glaciers, layering of rocks, type of soil c) volcanic rocks, radioactive decay, glaciers d) earthquake data, type of soil, fossils
. Alfred Wegener is the scientist who proposed the continental drift theory that lead to the theory of plate tectonics. Which of the following is true as it relates to other scientific discoveries?
a) Once a theory is accepted, it will not be changed. b) When the discovery was first made, there was no evidence to support it. c) It would not have been accepted if a lesser-known scientist had proposed the theory. d) The discovery was built on the discoveries of many other scientists.
What can we learn by studying fossils?
a) how hurricanes formed long ago b) how strong earthquakes are caused c) how the solar system was formed d) how the Earth's environments have changed
Areas on Earth's surface that lie above the places where tectonic plates meet are characterized by
a) a lack of plant and animal life. b) stable, temperate climate conditions. c) lengthy formations of sea arches. d) frequent earthquake activity.
A boundary where two tectonic plates come together, or collide, is called a .
a) transfer boundary. b) transform boundary. c) convergent boundary. d) divergent boundary
What type of rock is formed by volcanic activity?
a) sedimentary b) igneous c) coal d) metamorphic
The theory of plate tectonics attempts to explain the
a) layering of sedimentary rock. b) gravitational forces of Earth. c) movement of Earth's upper layers and the continents. d) composition of Earth's inner regions.
Tropical plant fossils have been found in Antarctica. This indicates that
a) some tropical plants can survive in cold weather. b) the climate of Antarctica must have once been warm. c) tropical plants can grow underground. d) humans must have left the plants there.
A deep well or mine shaft goes through which layer or layers of Earth?
a) crust only b) mantle only c) crust and mantle d) mantle and core
To get a measure of absolute age of object, a scientist would need to study the
a) depth that tools were found in an archeological dig. b) relative changes in fossils over time. c) radioactive dating like carbon-14 and potassium-argon. d) the order the rocks where laid down in
The Earth's core is mainly composed of
a) iron and aluminum. b) silicon and hydrogen. c) iron and nickel. d) silicon and oxygen.
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