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Geography friday Test > Weathering > Flashcards

Weathering Flashcards

1
Q

What is weathering?

A

Weathering is the disintegration of rocks by the various atmospheric conditions

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2
Q

What are three factors effecting weathering?

A

Climate, Chemical Composition and Structure of the rock.

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3
Q

What is climate?

A

Areas of high temperature and rainfall having a higher rate of weathering.

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4
Q

What is chemical composition of the rocks?

A

If the rocks have minerals that wre easily attacked by rain and air causing them to decompose.

(Calcium carbonate & iron)

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5
Q

What is the structure of the rock?

A

The cracks and joints in the rock.

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6
Q

What are the three types of weathering?

A

Physical/Mechanical weathering,
Chemical weathering,
Biotic weathering.

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7
Q

What is physical/mechanical weathering?

A

The rocks break into smaller pieces with no chemical change.

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8
Q

What is chemical weathering?

A

Chemical reactions causing rocks to decompose and change their chemical structure.

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9
Q

What is Biotic weathering?

A

Chemical and physical changes occurring because of plants and animals activity.

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10
Q

What are the 3 types of volcanoes?

A

Basic lava cone, acid lava cone and composite lava cone.

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11
Q

What is mass wasting?

A

The movement of weathered materials down slope

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12
Q

What are factors affecting mass wasting?

A

Nature of rock, size of material, weight of weathered material and amount of rainfall

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13
Q

What are the different types of mass wasting?

A

Soil creep and landslides

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14
Q

What is soil creep?

A

When layers of soil move gradually causing things to lean downhill and accumulate at the bottom of the slope to form terracepts

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15
Q

What is a landslide?

A

Movement of material downhill because of the increase of water in the ground

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16
Q

What are effects of mass wasting?

A

Loss of life, fences may bulge, trees bend down slope, small terracepts are formed, road ways are blocked.

17
Q

What are ways to prevent and reduce mass wasting?

A

Planting more trees to bind the soil, remove buildings in areas known for landslides and have a good drainage system.

18
Q

What is Denudation?

A

The term given to all processes that strip away the surface of the earth

19
Q

What is erosion?

A

The process of breaking up, transporting and depositing weathered materials and rocks

Geography friday Test (3 decks)

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