Name a disease caused by lack of each of the following in human diet.
i)Vitamin D
ii)Iodine (Answered)
  Name the disease in humans that is caused by lack of vitamin C. (Answered)
  When is glycogen which is stored in the liver converted into glucose and released into the blood? (Answered)
  An experiment was carried out to investigate the rate of reaction shown below.
Sucrose -> Fructose + Glucose
For the products fructose and glucose to be formed, it was found that substances K was to be added and the temperature maintained at #37^0C#. when another substance L was added, the
reaction slowed down and eventually stopped.
(a) Suggest the identity of substances K and L.
(b) Other than (Answered)
  Name the characteristic of living organisms illustrated by each of the activities described below:
(a) Dressing heavily
(b) Bursting of the sporangium in the Rhizopus sp. (Answered)
  State two characteristics of living things illustrated in the paragraph below. (Answered)
  Below is an illustration of piece of apparatus strategically positioned to trap some organisms.
(a) Name the apparatus.
b) State the function of the part labeled E. (Answered)
  State the importance of each of the following in living organisms:
(a) Nutrition
(b) Excretion. (Answered)
  How does nutrition as a characteristic of living organisms differ in plants and animals? (Answered)
  State one use, for each of the following apparatus in the study of living organisms.
(a) Pooter
(b) Pitfall trap. (Answered)
  State the name given to the study of:
(a) The cell
(b) Micro-organisms. (Answered)
  Motor vehicles move, use energy and produce carbon dioxide and water. Similar characteristics occur in living organisms yet motor vehicles are not classified as living. Explain. (Answered)
  State four efforts that have been made to improve transport in Africa. (Answered)
  Give two reasons why it is difficult to transport goods from Mombasa to Lagos by road. (Answered)
  Explain four advantages of rail transport over road transport. (Answered)
  State four problems facing communication in Kenya. (Answered)
  Name three modes of transport in Kenya. (Answered)
  Explain four reasons why horticulture farming is more developed in the Netherlands than in Kenya. (Answered)
  State five reasons for growing flowers under green houses. (Answered)
  Name three vegetable horticultural crops grown in Kenya. (Answered)
  Name four horticulture farms in Kenya. (Answered)
  Name three main types of agriculture. (Answered)
  What is sedentary farming? (Answered)
  Compare forestry in Kenya and Canada under the following headings:-
(i) Transportation of the logs.
(ii) Felling of trees.
(iii) Tree species. (Answered)
  Explain three problems which hinder the Kenya government’s effort to manage and conserve her forests. (Answered)
  State five characteristics of softwood forests in Canada. (Answered)
  Name two main exotic softwood trees grown in Kenya. (Answered)
  State four reasons why afforestation should be encouraged in Kenya. (Answered)
  What is reafforestation? (Answered)
  State three reasons for reclaiming swamps in Kenya. (Answered)
  Name two main reclamation projects in the Netherlands. (Answered)
  What is air pollution? (Answered)
  Give three reasons why the government of Kenya encourages the establishment of Jua Kali Industries (Answered)
  What is a cottage industry? (Answered)
  State five factors which influence nucleated settlement pattern. (Answered)
  State three characteristics of nomadic pastoralism. (Answered)
  Define the term transhumance. (Answered)
  State four positive effects of deserts features to man. (Answered)
  Apart from barchan state three depositional features. (Answered)
  Using well labelled diagram(s) explain how Barchan is formed. (Answered)
  Describe how wind transport materials on the desert surface using the following processes.
(i) Surface creep.
(ii) Saltation (Answered)
  Name two types of deserts landscapes. (Answered)
  Give two reasons why sedimentary rocks are dominant along the Kenyan Coasts. (Answered)
  State three changes that occur in rocks during metamorphism. (Answered)
  Describe how sedimentary rocks are formed through physical processes. (Answered)
  Name one example at each of the following types of sedimentary rocks.
-Chlorides.
-Arenaceous.
-Carbonaceous. (Answered)
  Give three ways in which rocks can be classified. (Answered)
  Differentiate between rocks and minerals. (Answered)
  Identify two reasons why most lakes within the Rift Valley are salty? (Answered)