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Dynamic Earth Unit Flashcards | StudBud
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Dynamic Earth Unit
Dynamic Earth Unit
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Earth Science Edgenuity Course
Flashcards
22 cards
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Practice quiz
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Host live
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Questions
22
Answers
1
Which statement describes seismic waves?
They carry energy
They originate from the epicenter.
They only vibrate at Earth's surface.
2
Which event is associated with convergent boundaries?
Creation of mid-ocean ridges
Formation of Island chains
Creating of convection currents
3
Great Rift Valley in Africa (rift valley), how did it form?
The rift valley formed similarly to an island arc
The rift valley formed at a convergent boundary
The rift valley formed when the crust pulled apart
4
Look at the Volcano Locations map. Pick the best answer.
No volcanoes are found in the middle of the ocean
Many volcanoes are on the eastern coast of Asia
5
Which feature forms when magma cools beneath Earth's surface?
Calderas
Geysers
Batholiths
Vents
6
In which layer of the Earth does the motion of the convection currents drive plate movement?
Inner Core
Mantle
Outer Core
Lithosphere
7
Which statement best describes the theory of plate tectonics?
Sections of Earth's continents are in slow, constant movement.
Plates sometimes move closer to one another.
Sections of Earth that shift are part of Earth's asthenosphere
8
Which temperature most likely corresponds to the asthenosphere?
6,217 C
3,628 C
1,613 C
2,521 C
9
How do geologists study direct evidence of Earth’s interior?
by analyzing how living things survice
by recording changes in climate patterns
by measuring seismic wave activity
By collecting core rock samples
10
One step geologists use to find the epicenter of an earthquake?
The draw circles around the epicenter from three locations.
They measure the difference between arrival of P and S waves
They look at data from at least one seismograph.
11
Which type of evidence do geologist usually study?
Diversity of life found on Earth
location of Earth in Outer Space
Interactions between living things on Earth
Waves the move through Earth
12
Which increases along faults and leads to rock breaking?
Focus
Damage
Stress
Earthquake
13
Wegener's ideas that contributed to the theory of continental drift...
The continents have moved apart very quickly due to earthquakes.
The continents were once connected as one landmass.
The continents drifted apart due to repeated meteor impacts.
14
The layers of the Earth. Which statement is correct?
The mantle is denser than the crust
The outer core is less than 70 km in thickness
Pressure increases when moving from the core to the crust.
The crust assists in forming Earth's Magnetic field
15
What causes the forces that pushes magma from the magma chamber through the pipe and vent of a volcano?
Water flow
Expanding gases
Gravity
Convergent boundaries
16
Hawaiian eruption of lava flowing into the sea. Which best describes this eruption?
Its magma is high in silica
Its gases are released in rapid bursts.
Its magma has low viscosity
Its lava came from an explosive eruption.
17
Explain Wegener's fossil evidence about land animals found on continents across oceans from one another.
Animals evolved separately on each continent.
Animals swam across the ocean
Continents were once one landmass and have drifted apart
18
Which statement describes the damage that results from Earthquakes?
The amount of damage increases as magnitude decreases.
Amount of damage can be used to determine intensity.
Damage can be measured using the Richter scale.
19
Which plate forms a boundary with the African plate?
Nazca
South American
Pacific
Philippine
20
When were Earth's landmasses first recognizable as the continents we know today?
135 million yrs ago
180 million yrs ago
10 million yrs ago
21
Mount St. Helens Volcano erupted with great force. Which phrase best describes this eruption?
Magma low in Silica
High-Viscosity magma
Gentle lava flows
Quiet eruption
22
Theory of Continental Drift. Which is evidence of Climate Change?
Glacial evidence found in South America
Volcano formation
Folded mountains in Africa and South American
Coal fields in several continents
