A
B
C
D
E
100
What is Pangaea? A the name of an ancient fossil B another name for continental drift C the name of the supercontinent that existed millions of years ago D the name of a German scientist
100
4. Any trace of an ancient organism that has been preserved in rock is called a A landform B continent C landmass D fossil
100
The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is called _____. A erosion B cracking and peeling C abrasion D ice wedging
100
Soil formation begins with the weathering of _________. A litter B the A horizon C the B horizon D the bedrock
100
Which type of evidence was NOT used by Wegener to support his continental drift hypothesis? A evidence from land features B evidence from fossils C evidence from human remains D evidence from climate
200
Soil that is rich in humus has high _______. A fertility B water content C sand content D clay content
200
Major earthquakes occur along _____ boundaries. A divergent B sea-floor C transform D rift valleys
200
Living organisms in soil help to _______. A slow the rate of soil formation B mix the soil and make humus. C build up the C horizon. D prevent the formation of humus.
200
Which type of plate boundary collide or come together? A divergent B convergent C transform D fault
200
A dark-colored substance that forms as plant and animal remains decay is _____. A decomposers B loam C humus D bedrock
300
9. Which type of plate boundary slip past each other? A convergent B divergent C transform D subduction
300
A place where two plates separate or pull apart is called a ____ boundary. A divergent B convergent C fault D transform
300
Iron combines with oxygen in the presence of water to create rust in a process called _____. A abrasion B release of pressure C acid rain D oxidation
300
When two continental plates collide, _______are formed, for example, the Himalayas. A rift valleys B mountain ranges C mid-ocean ridge D trench
300
The ring of fire is a ring of volcanoes and earthquakes that occur along_________. A the mid-ocean ridge. B plate boundaries. C hot spots. D rift valleys
400
What kind of weathering causes the mineral composition of rocks to change? A ice wedging B chemical weathering C mechanical weathering D release of pressure
400
The Earth's lithosphere is broken into sections called A rift valleys B boundaries C faults D plates
400
The mid-ocean ridge occurs along _________boundaries. A transform B divergent C convergent D subduction
400
Subduction is when _________. A earthquakes occur along transform boundaries. B new crust is formed. C the dense plate slides under another plate. D volcanoes are formed.
400
Which of the following is true about the lithospheric plates? A The lithospheric plate move occasionally. B The lithospheric plates never move. C The lithospheric plates move yearly. D The lithospheric plate constantly move.
500
Fossils of a particular animal species have been found in both southern Africa and South America but nowhere else. Which of the following is MOST LIKELY the reason why? A The fossils evolved into different species B The climate changed and became much colder. C In the past, South America and Africa were part of the same continent. D In the future, Africa and South America will be part of the same continent.
500
The topsoil makes up the A. A horizon B. B horizon C. C horizon D. bedrock
500
Which accurately describes the relationship between earthquakes and volcanoes? A Earthquakes usually cause volcanoes to erupt. B Volcanic eruptions usually cause severe earthquakes. C Earthquakes and volcanoes often are located where tectonic plates meet. D Earthquakes and volcanoes are related in any way
500
What force moves the lithospheric plates? A. conduction B. convection C. radiation D. magnetism
500
The process that continually adds new crust is ____ at mid-ocean ridges. A. subduction B. convection C. sea-floor spreading D. earthquakes
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