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Earth Science Ch 1 B
Test Description: Earth Science Ch. 1 B
Instructions: Answer all questions to get your test result.
1) Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis?
A
evidence from climate
B
evidence from human remains
C
evidence from landforms
D
evidence from fossils
2) Most geologists rejected Alfred Wegener’s idea of continental drift because
A
they were afraid of a new idea.
B
Wegener was interested in what Earth was like millions of years ago.
C
Wegener could not identify a force that could move the continents.
D
Wegener used several different types of evidence to support his hypothesis.
3) What technology did scientists use in the mid-1900s to map the mid-ocean ridge?
A
deep-sea diving
B
submarines
C
satellites
D
sonar
4) In sea-floor spreading, molten material rises from the mantle and erupts
A
in deep-ocean trenches
B
at the north and south poles
C
along mid-ocean ridges
D
along the edges of all the continents.
5) What did scientists in a submersible see when they observed the mid-ocean ridge?
A
rocks formed by the rapid hardening of molten material
B
the movement of Earth’s plates
C
a convergent boundary
D
convection currents in the ocean
6) The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as
A
conduction
B
continental drift
C
subduction
D
convection
7) Old oceanic crust is more dense than new oceanic crust because it is
A
moving toward a deep-ocean trench.
B
closer to the mid-ocean ridge
C
cool
D
hot
8) Most geologists think that the movement of Earth’s plates is caused by
A
convection currents in the mantle
B
conduction
C
Earth’s magnetic field.
D
earthquakes
9) The geological theory that states that pieces of Earth’s lithosphere are in constant, slow motion is the theory of
A
plate tectonics
B
sea-floor spreading
C
subduction
D
deep-ocean trenches
10) Earth’s mantle is
A
a dense ball of solid metal
B
a layer of rock that forms Earth's outer skin
C
a layer of molten metal
D
a layer of hot rock
*select an answer for all questions
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