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Folded mountains form When isostasy occurs When continents collide (like Asia and India, and the Himalayas) When continents diverge After earthquakes.

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Presentation on theme: "Folded mountains form When isostasy occurs When continents collide (like Asia and India, and the Himalayas) When continents diverge After earthquakes."— Presentation transcript:

1 Folded mountains form When isostasy occurs When continents collide (like Asia and India, and the Himalayas) When continents diverge After earthquakes

2 When the oceanic and continental lithospheres collide Oceanic plates subduct Continental plates subduct They stop each other They reach isostasy

3 What happens when two oceanic plates collide? The denser plate fractures The less dense plate fractures The less dense plate subducts The denser plate subducts

4 What type of mountain is formed when higher blocks fault? A folded mountain A salt-block mountain A fault-block mountain A flawed-block mountain

5 What happens when two continental plates collide? Large mountains can form Dome mountain are likely to form The plates subduct beneath each other The impact can cause large earthquakes

6 What is subduction? Once plate collides with another One plate destroys another One plate goes beneath another One plate divides another

7 Which of these are all types of mountains Rolling, glacial, subterranean, cascades Rocky, green, smoky, white Fault-block, dome, volcanic, folded Salt-block, dome,magmun,frozen

8 What happens when oceanic and continental plates collide? The asthenosphere and the lithosphere are disrupted The continental lithosphere subducts beneath the oceanic lithosphere Mountains can be created through uplift and volcanic eruptions. Valleys are created by the excessive energy release

9 A dome mountain is a mountain formed By the collision of continental plates By the eruption of magma from below Earth’s surface and out the top. When faults break off dome-shaped rocks By pressure from magma below Earth’s surface that does NOT erupt

10 A volcanic mountain is formed by The uplift of rock during continental plate collisions Rock layers that are bent and squeezed Pressure of magma that does NOT erupt on the Earth’s surface. Magma eruptions on Earth’s surface

11 What are the fasted waves? P waves T waves S waves Q waves

12 Earthquakes generally occur at plate boundaries where Stress on rocks is greatest The most rocks found Stress on rocks is low Magnetic pull is greatest

13 To find the distance to an earthquake’s epicenter, scientists Chart the lag time between preshocks and aftershocks Use radio wave detection devices Analyze the arrival times of P and S waves. Analyze the arrival times of Love waves an Rayleigh waves.

14 If you are in a car during an earthquake, you should Drive to a bridge Stop in a safe place Get out and run like the wind Park east of tall buildings

15 What happens to tsunamis as the move toward shore? They decrease in height The die out They turn to riptides They increase in height

16 Which is NOT a cause of tsunamis? Volcanic eruption Tornado Undersea landslide Undersea earthquake

17 P waves are also known as Secondary waves Compression waves Love waves Rayleigh waves

18 How do scientist find the epicenter of an earthquake By comparing arrival times of P and S waves By digging as several locations By comparing departure times of P and S waves By looking at satellite photos of tsunamis

19 Why do earthquakes usually occur at plate boundaries The rock at the edges of tectonic plates is soft, and gives easily Rock at the edges of tectonic plates is under great stress. The boundaries between tectonic plates have been seismically active for millions of years The last place that motion in an earthquake is detected.

20 This area is both a major earthquake zone and volcano zone. Pacific ring of volcanoes Pacific ring of fire Oceanic ring of fire Pacific island arc

21 Lichens and moss produce weathering agents called Exfoliation Organic activities Organic acids Sulfuric acids

22 Which of the following is NOT an agent of mechanical weathering Ice Wind Acid Gravity

23 Abrasion is caused by all of the following EXCEPT Wind Water Ice wedging Gravity

24 How does the amount of a rock’s surface area affect weathering? Larger area, more weathering Larger area, less weathering Smaller area, more weathering No affect at all

25 Plant and animal activities cause what king of weathering Chemical Mechanical Chemical and mechanical None at all

26 Climates that have the fastest rate of weathering are Hot and dry Hot and wet Cold and dry Cold and then hot

27 Steep slopes have high amounts of what kind of weathering Chemical Mechanical Chemical and mechanical None

28 Tropical climates generally form soil in which the “B” horizon is covered in a thin layer of Sand Rock Humus Clay

29 In which of the following erosion processes is gravity NOT a major factor Creep Mudflow Dust storm Slump

30 Which of the following is an example of a peneplain? Low, rolling hills Sand dunes Valleys Ponds

31 In what kind of climate is the weathering rate the slowest Cold, wet Alternating hot and cold Hot and dry Warm and humid

32 When overlying rocks are removed from granite that was formed deep beneath Earth’s surface decreases, and the granite forms long curved cracks called Exfoliation Joints Gullies Valleys


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