Chemical weathering is most likely to take place in environments that are: a) cold; b) wet; c) dry.
b) wet (These chemical processes need water, and occur more rapidly at higher temperature, so warm, damp climates are best.))
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10
What type of plate boundaries are responsible for these folded rocks in the Pyrinees?
Convergent boundaries
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10
What type of weathering is shown in the picture? a) Mechanical; b) Biological; c) Chemical; d) Magical
a) Mechanical (water soaks into small fissures and cracks, expands when it freezes in the winter, and physically breaks the rock apart)
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10
What type of weathering is shown in the picture? a) Mechanical; b) Biological; c) Chemical; d) Magical
b) Biological (plant roots can enter a small crack in a rock. As the root grows larger the crack gets larger. This weakens the structure of the rock).
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15
What is eroding this land? a) Wind; b) Rain; c) Glaciers; d) Rivers.
b) Rain (Rain-splash erosion: rain splashing down on the land and dislodging weathered material such as pebbles or soil).
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15
What happened to this sculpture?
Trees have slowly weathered stone by vines and roots expanding in and around rocks.
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10
What type of plate boundaries are responsible for the Lesser Antilles?
Convergent boundaries
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15
What is happening in this rock?
Even the tiniest bacteria, algae and lichens produce chemicals that help break down the rock on which they live. This is Biological Weathering.
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10
True or false? Gravity causes water to flow from higher to lower ground.
True
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15
Was this valley eroded by a river ir by a glacier?
A U-shaped valley is an example of a glacial landform, carved by slowly moving glaciers.
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10
What type of plate boundaries are responsible for the San Andreas Fault?
Transform boundaries
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15
What is the typical shape of a river valley?
They are typically V-shaped valleys.
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15
What happened to this rock?
This boulder was split by gelifraction (water freezes and expands, working to wedge the rock open). This is a type of mechanical or physical weathering.