You intend to carry out a field study on soils within school vicinity, name three properties of soil you are likely to identify.
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You intend to carry out a field study on soils within school vicinity, state three methods of data collection you would use
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Outline the characteristics of Chernozen and Latosols
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State three types of intrazonal soils (Answered)
State three factors that contribute to soil leaching (Answered)
What is soil leaching? (Answered)
You plan to carry a field study on a river in its youthful stage, list two problems you may experience during the study
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You plan to carry a field study on a river in its youthful stage, list two features you are likely to identify during the study (Answered)
You plan to carry a field study on a river in its youthful stage, state two reasons why you would need to prepare a working schedule
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Describe the following drainage patterns
i)Trellis drainage
ii) Dendritic drainage pattern (Answered)
State three factors the determine the rate of river erosion
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List three types of river erosion
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State two benefits of the hydrological cycle. (Answered)
Draw a well labelled diagram of the hydrological cycle (Answered)
Suppose you were to carry a field study on vegetation on mt. Kenya, give two uses of mountain vegetation you are likely to study about. (Answered)
Suppose you were to carry a field study on vegetation on mt. Kenya, list two methods you would use to record data (Answered)
Suppose you were to carry a field study on vegetation on mt. Kenya, state threes objectives you would formulate for the study
(Answered)
State two problems associated with exploitation of tropical rain forest (Answered)
Describe three characteristics of tropical vegetation (Answered)
State two major vegetation regions or zones of Kenya. (Answered)
Explain three factors influencing the distribution of vegetation in Kenya. (Answered)
You intend to go for a field study to a region where folding has occurred identify two methods you would use to record the data.
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You intend to go for a field study to a region where folding has occurred
State three reasons why you would conduct a pre-visit
(Answered)
Explain three positive effects of folding on the physical and human environment (Answered)
With the aid of a well labelled diagrams, describe how a fold mountain is formed.
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Name two fold mountains in the alpine Orogeny (Answered)
Using well labelled diagrams, distinguish between a simple symmetrical fold and an asymmetrical fold (Answered)
Give three reasons why some rift-valley lakes are saline.
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State two negative effects of weathering (Answered)
Study the feature below and use it to answer the question that follows:
a) i)Name the feature
ii)Name the type of weathering that led to the formation of the feature above
iii) State three conditions necessary for the formation of the feature above (Answered)
List two features resulting from horizontal earth movements (Answered)
State three causes of earth movements (Answered)
State three factors that are considered when citing a weather station. (Answered)
Differentiate between weather and climate (Answered)
Explain factors that influence soil formation (Answered)
State three planets that have satellites (Answered)
What is a solar system (Answered)
The following tests were carried out on three separate portions of a colourless solution R.
(a) From the information in test (i), name a cation which is not present in solution
(b) Identify a cation, which is likely to be present in solution S
(c) Write an ionic equation for the reaction which takes place in test(ii) (Answered)
a) What method can be used to separate a mixture of ethanol and propanol?
(b) (i) Explain how a solid mixture of sulphur and sodium chloride can be separated into solid sulphur and solid sodium chloride.
(ii) How can one determine if the solid sulphur is pure?
(c) The table below gives the solubilities of potassium bromide and potassium sulphate at #0^0C# and #40^0C#
(Answered)
a) Study the information in the table below and answer the questions that follow. (the letter do not represent the actual symbols of the elements)
(i) What is the general name to the group in which elements P,Q, and R belong?
(ii) What is meant by ionization energy?
iii) Explain why element P have the highest ionization energy.
(iv) When a piece of element Q is placed on water it melts and a (Answered)
How does distillation remove hardness from water (Answered)
State one cause of temporary hardness in water (Answered)
a) A student was supplied with colourless liquid suspected to be water.
(i) Describe two chemical test that could have been used to show that liquid was water.
(ii) How could it have been shown that liquid was pure water? (Answered)
Sample solutions of salts were labeled as I, II, III and IV. The actual solutions, not in that order , are lead nitrate, zinc sulphate, potassium chloride and calcium chloride.
(a) When aqueous sodium carbonate was added to each sample separately, a white precipitate was formed in I, III and IV
only. Identify solution II.
(b) When excess aqueous sodium was added to each sample separately, a white (Answered)
The table below shows the tests carried out on separate samples of water drawn from a well and the results obtained.
(a) Identify the cation and the anion present in the water.
(b) Write an ionic equation for the reaction which takes place in test (iii) (Answered)
When solid magnesium carbonate was added to a solution of hydrogen chloride in methylbenzene, there was no apparent reaction. On addition of water to the resulting mixture, there was vigorous effervescence. Explain these observations. (Answered)
State and explain one disadvantage of using hard water in boilers. (Answered)
The table below shows the solubility of a salt at various temperatures
What would happen if a sample of a saturated solution of the salt at #40^0#C is heated to #80^0#C? Explain (Answered)
The column below was used to soften hard water
(i) Explain how hard water was soften as it passed through the column.
(ii) After sometime the material in the column is not able to soften hard water. How can the material be reactivated?
(b) Give one advantage of using hard water for domestic purposes. (Answered)
A bee-keeper found that when stung by a bee, application of a little solution of sodium hydrogen carbonate helped to relieve the irritation from the affected area. Explain. (Answered)