Use topical questions for the best revision. Topical questions enable a more thorough, indepth study ensuring students understand each topic adequately
Check the Answers after the Questions 1. (a) Give three reasons for over-exploitation of hardwoods in Africa. (b) State four measures taken to conserve forests in Kenya. (c) (i) Name two major lumbering maritime provinces in Eastern Canada. (ii) Explain the factors that have favoured forestry in Canada. … Read more
CHECK THE ANSWERS AFTER THE QUESTIONS 1. a) Differentiate soil profile from soil catena b) Name three types of soil types according to soil structure c) i) Beside planting of trees state any other three measures that can be used to control desertification. ii) Explain how … Read more
Check the answers after the Questions 1. a) Form four students of your school carried out a field study on beef farming in Narok District. (i) State four objectives of their study. (ii) Give four follow up activities they carried out. (b) Students of Kakao secondary school … Read more
Answer the following questions: I. Write the equation for the decomposition of the electrolytes during the electrolytic process. H2O(l) -> OH– (aq) + H+(aq) H2 SO4(aq) -> SO42-(aq) + 2H+(aq) II. Name the ions in acidified water that are attracted/move to: Cathode- H+(aq) from either sulphuric(VI) acid(H2 SO4) or water(H2O) Anode– SO42-(aq) … Read more
(a)Calculate the solubility of potassium nitrate(V) if 5.0 g of the salt is dissolved in 50.0cm3 of water. Solubility = Mass of solute/salt/solid x 100 =>( 5.0 x 100 ) = 10.0 g /100g H2O Mass/volume of water/solvent 50.0 (b)Calculate the solubility of potassium chlorate(V) if 50.0 g of the salt is … Read more
1. Calculate the volume of Oxygen required to completely react with 50cm3 of Hydrogen. Chemical equation: 2H2 (g) + O2 (g) -> 2H2O(l) Volume ratios 2 : 1 : 0 Reacting volumes 50cm3 : 25cm3 50cm3 of Oxygen is used 2. Calculate the volume of air required to completely reacts … Read more
CHEMISTRY OF CHLORINE A.CHLORINE Chlorine is a non-metallic element in group VII (Group 17) of the periodic table. It has electronic configuration 2:8:7. It gains one valence election to form stable Cl–ion, it belongs to the chemical family of halogens. Occurrence -As Brine-concentration sodium chloride solution dissolved in salty seas water, oceans and lakes e.g. … Read more
How is the human eye adapted to its function? conjunctiva is thin/transparent/tough to allow light to pass through/to protect the eye Sclerotic layer is made up of (collagen) fibers/fibrous. It maintains shape of the eyeball/protects the eye cornea is transparent/curved thus refracts light rays/allows light to pass through Choroid is a layer of tissue with … Read more
(a) Prophets 1. (a) Five conditions which lead to the Babylonian exile are;- Babylonians had become powerful and had defeated Egypt The Israelites had forsaken the covenant way of life/commands of God They had broken their relationship with God e.g. worshipped idols. Intermarriages with foreigners Israelites refused to listen to Prophets They also persecuted the … Read more
