Question 1
The diagrams below illustrate human activities against bites from mosquitoes in homes. Study them and answer questions 1(a), (b), (c) and (d).
(a) Name each of the toilets illustrated in diagrams I and II. [2 marks]
(b) State three other methods of protection against bites from mosquitoes [3 marks]
(c) Mention two environmental conditions that favour breeding of mosquitoes [2 marks]
(d) Mention three diseases that could be contracted through mosquito bite [3 marks]
Observation
This question was attempted by majority of the candidates and their performance was good. In Question 1(a), many candidates were able to name the illustrated diagrams. In Question 1(b), many candidates were able to state other methods of preventing mosquito bites. In Question 1(c) and 1(d), the answers provided shows good knowledge of the question by candidates.
The expected answers are as follow:
(a) Activities in diagrams I and II
I - Sleeping under treated mosquito net
II - Spraying/fumigation
(b) Other methods of protecting against mosquito bite
- Natural/biological method
- Physical killing/mechanical method
- Use of door/window net
- Destruction of breeding grounds
- Use of insect repellant cream/insecticides
- Staying indoors at duck/down
(c) Environmental conditions that favour breeding of mosquitoes
- Stagnant water
- Bushes around the house
- Unhygienic environmental conditions/named
- Blocked gutters/drainage system
(d) Diseases that could be contracted
- Malaria - Elephantiasis
- Filariasis - Yellow fever
- Dengue fever - Zika virus