Get premium membership and access questions with answers, video lessons as well as revision papers.
a) Magma is the molten rock material which originates from interior of earth ,cools while below the earth surface and has large crystal while lava is the molten rock material that has reached the surface, has solidified and has small crystals.
b) E-dyke, F- Lopolith , G- Sill
i) A crater : Eruption of lava through a central vent causes building up of a cone. The lava in the vent cools and contracts. The cool lava withdraws into the vent leaving a shallow depression of the cone. Gas explosions may blow away surface rocks causing a crater .Example Mt Longonot , Mt menengai, MTsuswa, M t marsabit
ii) A geyser: Rain water percolates down through cracks in the rocks. The water gets into contact with hot igneous rock. The water is super-heated and gases or steam form. Pressure builds up in the cracks. The pressure causes steam and water to be ejected explosively as jets to the surface.
The water and stream are emitted intermittently as pressure level changes. Example: around lake Bongoria.
iii)A lava plateau: it is formed when magma reaches the surface of the earth through a serious of vents or fissures. The lava is extremely fluid or ultra through a series of vents or fissures. The lava spread evenly over a large area filling al the former valley basic. The lava spread evenly over large area filling al l the former valley and covers most of the landscape with exception of high hills. The lava cools slowly and solidifies. Several eruption build up successive layers lava that form an extensive highland with a flat surface known as a plateau. Examples , Y ATTA plateau , UASIN GISHU plateau , LAIKIPIA plateau
d)- Volcanic highland or mountain are source of rivers which provide water for domestic or agricultural or industrial use.
-Volcanic rocks weather down to form fertile volcanic soils which support agriculture
-Volcanic rock are building in the construction industry
-Volcanic features are tourist attraction which promote tourism
-Volcanic mountains or highlands influence formation of relief rainfall which encourage activities.
-Volcanic highland influence formation of relief rainfall which encourage agricultural activities
-volcanic highland or Mountain modify temperature making them attractive to human settlements
-Volcanic feature or such steam jets and geysers provide suitable site for geothermal power generation.
johnmulu answered the question on October 4, 2017 at 06:50
- Explain four major factors that influences the distribution and types of forest(Solved)
Explain four major factors that influences the distribution and types of forest
Date posted: October 4, 2017. Answers (1)
- Describe the characteristic of tropical hardwood forest(Solved)
Describe the characteristic of tropical hardwood forest
Date posted: October 4, 2017. Answers (1)
- Define the term forest(Solved)
Define the term forest
Date posted: October 4, 2017. Answers (1)
- Student of Karatu high school intend to visit a National park near their school(Solved)
Student of Karatu high school intend to visit a National park near their school
Date posted: October 4, 2017. Answers (1)
- What are the problems facing wildlife in Kenya(Solved)
What are the problems facing wildlife in Kenya
Date posted: October 4, 2017. Answers (1)
- Define the term wildlife(Solved)
Define the term wildlife
Date posted: October 4, 2017. Answers (1)
- Describe the steps involved in sugar processing after the cane is harvested(Solved)
Describe the steps involved in sugar processing after the cane is harvested
Date posted: October 4, 2017. Answers (1)
- Give four ways in which sugar is used(Solved)
Give four ways in which sugar is used
Date posted: October 4, 2017. Answers (1)
- Name two diseases that affect sugarcane(Solved)
Name two diseases that affect sugarcane
Date posted: October 4, 2017. Answers (1)
- Identify four problems facing regional trading blocs in Africa.(Solved)
Identify four problems facing regional trading blocs in Africa.
Date posted: October 4, 2017. Answers (1)
- Outline form roles played by the common market for eastern and southern Africa in the
economy of its member state.(Solved)
Outline form roles played by the common market for eastern and southern Africa in the
economy of its member state.
Date posted: October 4, 2017. Answers (1)
- Explain three ways in which trade is of significance to Kenya’s economy(Solved)
Explain three ways in which trade is of significance to Kenya’s economy
Date posted: October 4, 2017. Answers (1)
- Outline four factors that influence trade(Solved)
Outline four factors that influence trade
Date posted: October 4, 2017. Answers (1)
- State three levels of monetary trade(Solved)
State three levels of monetary trade
Date posted: October 4, 2017. Answers (1)
- List three forms of telecommunication services in Kenya(Solved)
List three forms of telecommunication services in Kenya
Date posted: October 4, 2017. Answers (1)
- List three factors that led to the location of Mombasa as a city and port.(Solved)
List three factors that led to the location of Mombasa as a city and port.
Date posted: October 4, 2017. Answers (1)
- State three main functions of rural settlements.(Solved)
State three main functions of rural settlements.
Date posted: October 4, 2017. Answers (1)
- Name two types of indigenous hard wood trees found in Kenyan forests.(Solved)
Name two types of indigenous hard wood trees found in Kenyan forests.
Date posted: October 4, 2017. Answers (1)
- Identify three factors that favored the location of cement processing plant Athi River near
Nairobi(Solved)
Identify three factors that favored the location of cement processing plant Athi River near
Nairobi
Date posted: October 4, 2017. Answers (1)
- State four factors that influence development of industries in Kenya(Solved)
State four factors that influence development of industries in Kenya
Date posted: October 4, 2017. Answers (1)