1. (a)
(i) Outline the path taken by inhaled air beginning from the nostrils to the alveolus.
(b)
(i) What is the Water Cycle?
(ii) State four processes involved in the Water Cycle.
(c) List four factors that should be considered in selecting a site for large-scale vegetable production.
(d)
(i) State three ways of protecting people from the effects of radioactivity.
(ii) State two uses of nuclear energy.
2. (a)
(i) Explain each of the following terms as used in maize production:
(α) Supplying
(β) Thinning
(ii) State two diseases that affect maize.
(b)
(i) Name the two biological systems which help to coordinate the body’s activities.
(ii) Mention the two hormones produced by the pancreas.
(iii) Name one disease condition associated with the failure of the pancreas to produce sufficient hormone.
(c) Name the type of bond formed when there is a reaction between each of the following pairs of elements.
(i) Carbon and oxygen.
(ii) Hydrogen and sulphur.
(iii) Copper and oxygen.
(iv) Carbon and hydrogen.
(d)
(i) Distinguish between permanent magnet and temporary magnet.
(ii) State
(α) two uses of permanent magnets.
(β) one use of temporary magnets.
