Local uplift of land (dynamic rejuvenation) lead to a change in the base level hence the river
revives its erosive activities.
-Lowering at the seal level (eustactic rejuvenation )creates sharp breaks/knick points at the rive
mouth. This leads to revived erosion.
-Increase in discharge raise the volume of a river thus increasing its erosive power.
-Presence of a hard rock out crop a long the river causes breaks over which a river drops in falls
and renews sits erosive work.
gideon1 answered the question on September 29, 2017 at 17:50
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Describe how a river erodes its channels by the following process. (i) Hydraulic action (ii) Abrasion
(Solved)
Describe how a river erodes its channels by the following process.
i) Hydraulic action
ii) Abrasion
Date posted:
September 29, 2017
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Answers (1)
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Outline four ways in which a glaciated landscape is of negative significance to human activities.
(Solved)
Outline four ways in which a glaciated landscape is of negative significance to human activities.
Date posted:
September 29, 2017
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Name three types of Moraines.
(Solved)
Name three types of Moraines.
Date posted:
September 29, 2017
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State two characteristics of a pyramid peak.
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State two characteristics of a pyramid peak.
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September 29, 2017
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Describe two ways in which ice moves.
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Describe two ways in which ice moves.
Date posted:
September 29, 2017
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State two ice age in glaciation
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State two ice age in glaciation.
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September 29, 2017
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What is glaciation?
(Solved)
What is glaciation?
Date posted:
September 29, 2017
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Students are planning to carry out a field study of an area affected by faulting. (i) State four reasons why it is important for the students...
(Solved)
Students are planning to carry out a field study of an area affected by faulting.
i) State four reasons why it is important for the students to have a pre-visit of the area.
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Date posted:
September 29, 2017
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Explain four effects of faulting.
(Solved)
Explain four effects of faulting.
Date posted:
September 29, 2017
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State three conditions necessary for the formation of a sand spit.
(Solved)
State three conditions necessary for the formation of a sand spit.
Date posted:
September 29, 2017
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Give the reason why air cools as it rises.
(Solved)
Give the reason why air cools as it rises.
Date posted:
September 29, 2017
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State three ways in which lakes influence the natural environment.
(Solved)
State three ways in which lakes influence the natural environment.
Date posted:
September 29, 2017
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State two changes that occur in sedimentary rocks when they are subjected to intense heat and pressure.
(Solved)
State two changes that occur in sedimentary rocks when they are subjected to intense heat and pressure.
Date posted:
September 29, 2017
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Give three examples of mechanically formed sedimentary rocks.
(Solved)
Give three examples of mechanically formed sedimentary rocks.
Date posted:
September 29, 2017
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Explain four ways in which the government of Kenya has assisted the nomadic pastoralists to improve the quality of their livestock.
(Solved)
Explain four ways in which the government of Kenya has assisted the nomadic pastoralists to improve the quality of their livestock.
Date posted:
September 29, 2017
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Answers (1)
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State three physical conditions that favour livestock rearing in Kenya.
(Solved)
State three physical conditions that favour livestock rearing in Kenya.
Date posted:
September 29, 2017
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Apart from the Maasai, name two other pastoralist communities in Kenya.
(Solved)
Apart from the Maasai, name two other pastoralist communities in Kenya.
Date posted:
September 29, 2017
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What is nomadic pastoralism?
(Solved)
What is nomadic pastoralism?
Date posted:
September 29, 2017
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You have planned to carry out a field study on an open cast mining site (i) State three ways in which you would prepare for the...
(Solved)
You have planned to carry out a field study on an open cast mining site
i. State three ways in which you would prepare for the study.
ii. Identify three methods of data collection you are likely to use.
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identify.
Date posted:
September 29, 2017
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Answers (1)
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Explain how the following factors influence mining (i) Mode of occurrence of minerals (ii) Quality of the ore (iii)The size of the mineral deposit
(Solved)
Explain how the following factors influence mining.
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ii. Quality of the ore.
iii. The size of the mineral deposit.
Date posted:
September 29, 2017
.
Answers (1)