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Geography > Our Changing Earth > Flashcards

Our Changing Earth Flashcards

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1
Q

Waterfall

A

When a river tumbles at steep angles over hard rocks

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2
Q

Endogenic forces

A

Sudden / diastrophic

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3
Q

Exogenic

A

Erosional and depositional

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4
Q

Earthquakes

A

When lithosperic plates move , they cause vibrations these vibrations are know as earthquakes

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5
Q

S waves

A

Transverse waves

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6
Q

P waves

A

Longitudinal waves

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7
Q

L waves

A

Surface waves

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8
Q

Meanders

A

As river enters the plains , it twist turns and bends forming large bends

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9
Q

Detla

A

To collection of sediments from all the mouths of rivers

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10
Q

Loess

A

When wind carries light fine particles of sand to distant places , its a wind depositional feature

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11
Q

Highest waterfall

A

Angel falls / Venezuela south america

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12
Q

Niagara falls

A

Between the borders of Canada and USA north america

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13
Q

Victorious falls

A

Between borders of Zambia and Zimbabwe Africa

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14
Q

Wave

A

Rise and fall of water due to the friction between air and water surface

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15
Q

Stack

A

Osolated mass of steep rock near a coastline

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16
Q

Circumference of earth

A

40,000kms

17
Q

Radius

A

6371

18
Q

Upper limit

A

10,ooo kms

19
Q

Atgon

A

0.98%

20
Q

Lithospheric plates

A

The earth’s crust consist of several large and rigid irregular shaped plates which carry continents and ocean floors.

21
Q

Diameter of earth

A

12742

22
Q

Focus

A

Origin of seismic energy and where the actual movement starts

23
Q

Epicenter

A

The place on the surface obove the focus

24
Q

Plate boundary

A

Location where the earth’s tectonic plates(small rigid irregular plates that make up the earth’s outer shell) interact

25
Q

Crater

A

Funnel shaped hallow space at vent

26
Q

Valcoanp eruption

A

Rocks are heavier then magma so magma rises and gets collected in magma chambers . Eventually it’s pushed through fissure or vent

Geography (2 decks)

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