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1. Contraction Theory
During the earth’s formation surface rocks cooled faster and wrinkled to form Fold Mountains.
2. Convectional Currents Theory
- Horizontal convectional currents in the mantle exerted frictional pull on crustal rocks.
- Continental crusts were pulled towards each other.
- Sediments between them were squeezed into folds.
3. Continental Drift Theory
- During break of Gondwanaland India drifted northwards and collided with Eurasia.
- Sediments between were squeezed to form fold mountains e.g. Himalayas and Everest.
4. Plate Tectonics Theory
- When an oceanic plate meets another or it meets a continental plate the sediments under the sea are compressed to form Fold Mountains.
- When two continental plates meet the sial layer is compressed to form fold mountains
-E.g. Alps was formed when Africa plate pushed against the rigid European plate.
lydiajane74 answered the question on November 24, 2017 at 12:34
- (a) Name two plate tectonic boundaries.
(b) State three characteristics of tectonic boundaries.(Solved)
(a) Name two plate tectonic boundaries.
(b) State three characteristics of tectonic boundaries.
Date posted: November 24, 2017. Answers (1)
- Outline the features developing on submerged highland coasts(Solved)
Outline the features developing on submerged highland coasts.
Date posted: November 23, 2017. Answers (1)
- Explain how the following factors influence the location of industries.
i. Government policies.
ii. Presence of electricity.(Solved)
Explain how the following factors influence the location of industries.
i. Government policies.
ii. Presence of electricity.
Date posted: November 21, 2017. Answers (1)
- (a) .(i). Name two forms of energy.
(ii).State three advantages of solar energy.
(b). (i). Apart from Ol Karia, name two potential areas in Kenya for the...(Solved)
(a) .(i). Name two forms of energy.
(ii).State three advantages of solar energy.
(b). (i). Apart from Ol Karia, name two potential areas in Kenya for the generation of Geothermal power.
(ii).State TWO factors that limit the exploitation of geothermal power in Kenya.
(c). State three reasons why Kenya import oil in crude form.
(d). Explain Four physical factors that favour the location of a hydro-electric power station.
(e). Your class intends to carry out a field study on the sources and uses of energy within the local environment.
i. Give two methods you will use to present the data.
ii. Give three problems you are likely to encounter while collecting the data.
Date posted: November 21, 2017. Answers (1)
- a) (i). Define fish farming.
(ii). Name three major areas where fish farming is practiced in Kenya.
(b) Explain how the following factors influence fishing.
(i) Presence of...(Solved)
a) (i). Define fish farming.
(ii). Name three major areas where fish farming is practiced in Kenya.
(b) Explain how the following factors influence fishing.
(i) Presence of ocean currents.
(ii) Nature of the coastline.
Date posted: November 21, 2017. Answers (1)
- Use the map below to answer the question that follow(Solved)
Use the map below to answer the question that follow
(i)Name the minerals mined in areas marked A and D
(ii)State three economic benefits of mining of the mineral in region A
(iii)List two uses of the mineral mined in region A
Date posted: November 21, 2017. Answers (1)
- Give the similarities of fishing in Kenya and Japan(Solved)
Give the similarities of fishing in Kenya and Japan
Date posted: November 21, 2017. Answers (1)
- Give the differences between softwood in Kenya and Canada (Solved)
Give the differences between softwood in Kenya and Canada
Date posted: November 21, 2017. Answers (1)
- Use the map of Kenya below to answer questions below(Solved)
Use the map of Kenya below to answer questions below
(i)Name the forest reserves marked J,K and L.
(ii)Explain four factors that favour the growth of natural forest in the area marked J
Date posted: November 20, 2017. Answers (1)
- The diagram below represents a sketch map of the Great lakes and St. Lawrence seaway.Use it to answer the questions below.(Solved)
The diagram below represents a sketch map of the Great lakes and St. Lawrence seaway.Use it to answer the questions below.
Name (i)canals marked N and Q
(ii)The lakes marked O
(iii)The ports marked M
Date posted: November 20, 2017. Answers (1)
- The diagram below represents underground features in limestone area.use it to answer questions that follow.(Solved)
The diagram below represents underground features in limestone area.use it to answer questions that follow.
(i)Name the features marked D,E and F
(ii)Describe how feature marked G is formed.
Date posted: November 20, 2017. Answers (1)
- Study the diagram below and answer the question below(Solved)
Study the diagram below and answer the question below
Name features marked Z,Q and M
Date posted: November 20, 2017. Answers (1)
- Suppose you intend to carry out a field study of the Mau forest.
(i) Mention two preparations you would do before the actual field study.
(ii) List...(Solved)
Suppose you intend to carry out a field study of the Mau forest.
(i) Mention two preparations you would do before the actual field study.
(ii) List two problems facing the Mau forest you would discover.
(iii) Suggest two solutions you would recommend to solve the above problems.
Date posted: November 20, 2017. Answers (1)
- (a ) Name three types of desert surfaces (b) Explain three processes through which wind erode the desert surfaces(Solved)
(a) Name three types of desert surfaces.
(b) Explain three processes through which wind erode the desert surfaces.
Date posted: November 20, 2017. Answers (1)
- Explain two positive significance of features found in Limestone areas.(Solved)
Explain two positive significance of features found in Limestone areas.
Date posted: November 20, 2017. Answers (1)
- (i) Describe three main characteristics of the tropical rain forest (ii) State three uses of Savannah vegetation.(Solved)
(i) Describe three main characteristics of the tropical rainforest.
(ii) State three uses of Savannah vegetation.
Date posted: November 20, 2017. Answers (1)
- Explain how the following factors affect vegetation type and distribution (i) Aspect (ii) Biotic factors(Solved)
Explain how the following factors affect vegetation type and distribution.
i. Aspect
ii. Biotic factors
Date posted: November 20, 2017. Answers (1)
- Explain five positive significance of Vulcanicity to Human activities.(Solved)
Explain five positive significance of Vulcanicity to Human activities.
Date posted: November 20, 2017. Answers (1)
- (a) Name two spheres of external structure of the earth (b) State two characteristics of the inner core.(Solved)
(a) Name two spheres of external structure of the earth.
(b) State two characteristics of the inner core.
Date posted: November 19, 2017. Answers (1)
- State two factors that may make the data collected from a school weather station to be inaccurate.(Solved)
State two factors that may make the data collected from a school weather station to be inaccurate.
Date posted: November 19, 2017. Answers (1)