Get premium membership and access questions with answers, video lessons as well as revision papers.
Convection current causes the molten rocks to circulate in cyclical manner
Convection current move the inside the mantle towards the upper mantle surface and then horizontally
When the convectional currents meet beneath the crust they sink inward causing the rock above to converge
point move vertically in wards
This causes both horizontal and vertical movement in earth crust
johnmulu answered the question on October 14, 2017 at 08:35
- Describe the origin of Africa plate according to the theory of continental drift(Solved)
Describe the origin of Africa plate according to the theory of continental drift
Date posted: October 14, 2017. Answers (1)
- Distinguish between orogenic and epeirogenic earth movement are the vertical earth movement(Solved)
Distinguish between orogenic and epeirogenic earth movement are the vertical earth movement
Date posted: October 14, 2017. Answers (1)
- Describe how a hygrometer is used to measure relative humidity(Solved)
Describe how a hygrometer is used to measure relative humidity
Date posted: October 14, 2017. Answers (1)
- Explain two characteristics of Stevenson screen(Solved)
Explain two characteristics of Stevenson screen
Date posted: October 14, 2017. Answers (1)
- What is weather station?(Solved)
What is weather station?
Date posted: October 14, 2017. Answers (1)
- Name two features from water deposition in arid areas(Solved)
Name two features from water deposition in arid areas
Date posted: October 14, 2017. Answers (1)
- State two conditions which influence wind erosion(Solved)
State two conditions which influence wind erosion
Date posted: October 14, 2017. Answers (1)
- Describe how Roche Mountain are formed(Solved)
Describe how Roche Mountain are formed
Date posted: October 14, 2017. Answers (1)
- Differentiate between till deposits and fluvio –glacio deposited by melt water and the material are sorted (Solved)
Differentiate between till deposits and fluvio –glacio deposited by melt water and the material are sorted
Date posted: October 14, 2017. Answers (1)
- Name the metaphoric equivalent of the following rocks (i)Peridotite (ii)Mudstone (Solved)
Name the metaphoric equivalent of the following rocks (i)Peridotite (ii)Mudstone
Date posted: October 14, 2017. Answers (1)
- State three characteristics of extrusive igneous rocks(Solved)
State three characteristics of extrusive igneous rocks
Date posted: October 14, 2017. Answers (1)
- Name any two constituents of the atmosphere(Solved)
Name any two constituents of the atmosphere
Date posted: October 14, 2017. Answers (1)
- Give five measures Kenya has taken to reduce the unfavourable balance of trade (Solved)
Give five measures Kenya has taken to reduce the unfavourable balance of trade
Date posted: October 14, 2017. Answers (1)
- Distinguish between invisible and visible exports(Solved)
Distinguish between invisible and visible exports
Date posted: October 14, 2017. Answers (1)
- Give two examples of ox-bow lakes in kenya.(Solved)
Give two examples of ox-bow lakes in kenya.
Date posted: October 14, 2017. Answers (1)
- State three ways in which a river may erode its banks(Solved)
State three ways in which a river may erode its banks
Date posted: October 14, 2017. Answers (1)
- Outline four negative significances of hydrological cycle(Solved)
Outline four negative significances of hydrological cycle
Date posted: October 13, 2017. Answers (1)
- Differentiate between condensation and cooling.(Solved)
Differentiate between condensation and cooling.
Date posted: October 13, 2017. Answers (1)
- Distinguish between slump and landslide types of mass wasting(Solved)
Distinguish between slump and landslide types of mass wasting
Date posted: October 13, 2017. Answers (1)
- Explain three physical factors affecting human settlement.(Solved)
Explain three physical factors affecting human settlement.
Date posted: October 13, 2017. Answers (1)