Weathering

Question 1

What is weathering

Answer 1

Weathering is wearing away and break down of rocks due to activities like temperature changes, chemical reactions or interference from living things.

Question 2

What are the types of weathering

Answer 2

Physical Weathering
Biological Weathering
Chemical Weathering

Question 3

What is another name for physical weathering

Answer 3

Mechanical Weathering

Question 4

What is biological weathering

Answer 4

Biological weathering is the wearing away and breakdown of rocks due to activities from plants and animals

Question 5

What is abrasion

Answer 5

Abrasion is when an agent of erosion like water or wind uses particles such as rocks or pebbles in the breakage of other surfaces through consistent contact.

Question 6

What is the difference between weathering and erosion

Answer 6

Weathering is the wearing away and break down rocks and other materials in one area while erosion involves the wearing away and transportation of rocks

Question 7

What is another name for freeze - thawing

Answer 7

Frost shuttering

Question 8

What is another name for solution

Answer 8

Corrosion

Question 8

What is physical weathering

Answer 8

Physical weathering is the wearing away and breakdown of rocks through physical processes such as wind ,rain, waves nd extreme changes in temperature.

Question 9

What is chemical weathering

Answer 9

Chemical weathering involves changing rocks through reactions like oxygen exposure and acids, It makes the rocks dissolve, break down, or change into different minerals.

Question 10

What is erosion

Answer 10

Erosion involves wearing away and removal of loose materials, such as rocks through agents of erosion like water, wind, or ice.

Question 11

What is another name for abrasion

Answer 11

Corrasion

Question 12

What are some types of erosion

Answer 12

1. Abrasion
2. Attrition
3. Hydraulic Action
4. Solution

Question 13

What is solution

Answer 13

Solution is when rocks dissolves in water. Some examples of the rocks are limestone, chalk and dolomite.

Question 14

What is attrition

Answer 14

This is when rocks are moved by agents of erosion like water or wind and experience constant contact with the sea bed. the banks and other rocks and causing each of them to wear away.

Question 15

How are v shaped valleys formed?

Answer 15

The river erodes downward, bouncing boulders and rocks along the bed. As it cuts down, weathering attacks the steep sides, breaking up soil and loosening rock. The loosened material creeps down due to gravity or is washed into the river by rain. The river carries it away, forming a V-shaped valley.

Question 16

Factors affecting weathering

Answer 16

1.Climate affects the rate of weathering.
2. The mineralogical constitution of rock affects the rate of disintegration or alteration.
3. The rock’s texture also determines the type of weathering which takes place.

Question 17

What is transportation

Answer 17

Transportation is the movement of the eroded materials(load) from one place to another. These loads are saltation load, solution load, suspension load, traction load.

Question 18

State and explain the types of load

Answer 18

1.saltation load = this is when small pebbles or stones are bounced along the river bed),
2.solution load (this is when the materials dissolved and carried in solution).
3. suspension load = it is when the small materials are carried on the surface of the waterbody.Eg is the colour.
4. traction load = this is when the large loads are rolled along the river due to more energy from the flowing water).

Question 19

What is deposition

Answer 19

It is when the flowing water loses it energy, hence it’s unable to carry the material and the material settles there.

Question 20

What is a river?

Answer 20

It is a moving body of water that flows from source into another body of water such as sea, ocean , lake . It flows along a channel with banks on both sides and a bed at the bottom. It receives water from precipitation.

Question 21

What is Lateral Erosion

Answer 21

Lateral erosion is when the river erodes its banks causing the channels to widen.

Question 22

What type of erosion occurs at the lowercourse of a river

Answer 22

Lateral Erosion

Question 23

What type of erosion occurs at the uppercourse of a river

Answer 23

Vertical Erosion

Question 24

What are the three types of courses in a river

Answer 24

1. Uppercourse
2. Lowercourse
3. Middle Course

Question 25

What is Vertical Erosion

Answer 25

This is the downwards erosion that makes the river bed deeper.

Question 26

What is an estuary

Answer 26

An estuary is the area around the mouth of a smaller water body where the small water body empties itself into a larger water body

Question 27

What is a headland

Answer 27

A headland is a part of the coastline that juts out into the sea and usually ends in a cliff. It appears this way because the surrounding soft rock wore away leaving the headland, which is the hard Rock to stay there

Question 28

What is a backwash

Answer 28

This is when the waves of the sea move away or recede from the shore

Question 29

What is a swash

Answer 29

A swash is when the waves move towards and sometimes onto the shore