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16 Cards in this Set
- Front
- Back
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State two ways in which mountains are formed.
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the action of plate tectonics and volcanic eruptions.
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Give two uses of mountains.
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recreational activities and agricultural production.
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Name two mountains that are found in Jamaica, and state the parishes which they are found
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Cockpit Country-St.James and Trelawny
BLue Mts-Portland, St.Andrew and St. THomas. |
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What is a plain?
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a large area of flat land.
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What is a valley?
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a low area of land between hills or mountains.It is usually a 'v' or 'u' shape.
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What is a river?
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a large natural flow of water moving in a channel to the sea or another river.
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How is a hill formed?
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by deposit of glacial dust.
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How is a river formed?
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when one stream meets another and they merge together, the smaller stream is known as a tributary.It take many tributary stream to form a river.
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How is a valley formed?
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forces such as erosion and rivers huge bodies of ice that moved along;the carved the valleys as they pass carrying away large boulders and huge amount of debris.
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How is a plain formed?
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volcanic eruptions.
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How are igneous rocks formed?
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they are formed when the melted rock, called magma,deep within the earth becomes trapped in small pockets.As these pockets of magma cool slowly underground,the magma becomes igneous roocks
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Give two examples of igneous rocks.
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granite and pumice
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How are metamorphic rocks formed?
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the rocks are under tons and tons of pressure which fosters heat build up, and this causes them to change
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give two examples of metamorphic rocks.
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schist and gneiss
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How are sedimentary rocks formed?
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edit
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Give two examples of sedimentary rocks.
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gypsum and limestone
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