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Plate Boundaries

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11EES Module 2.3

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Questions 12

Answers

1
The parts labelled X and Y are
Rift zone (X) and Valley (Y)
Graben (X) and Horst (Y)
Valley (X) and Saddle (Y)
Horst (X) and Graben (Y)
2
Which of these boundaries shows subduction?
Australian- African plate
Cocos-Carribean plate
African-Arabian plate
Antarctic-Pacific plate
3
This image shows a typical
mountain fold
Normal fault
Graben and horst
Reverse fault
4
Volcanoes are always found at transform faults
False
True
5
Choose the most correct statement. Volcanoes are:
often found on the side of the plate that is above the subducting plate
always found on the side of the trench where the plate is subducting
often found on the side of the trench where the plate is subducting
found near either side of a subduction zone
6
Mountain folding is caused by
formation of ocean ridges
tension forces behind volcanic ranges
compression forces behind volcanic ranges
heat from excessive volcanic activity
7
Which of these regions contains a significant convergent boundary?
The East African Rift Valley
The Australina continent
The Himalayas
The Mid Atlantic Ridge
8
Normal faulting is casued by
Fracture forces
Compression forces
Tension forces
Contraction forces
9
Which of these features is mainly found at divergent zones?
Tall mountain ranges
Explosive volcanoes
Deep trenches
Rifting
10
Andesite is a typical product of ocean-continent convergence
True
False
11
A typical feature of a convergent ocean-ocean zone is
Black smokers
Island arc
Mountain range
Hot spot volcanoes
12
Which of these are found at divergent boundaries?
Dark smokers
White smokers
Hydrothermal valleys
Hydrothermal vents