The following diseases are caused by eating contaminated food, except: A. Typhoid fever B. Diarrhea C. Cholera D. Malaria [ ]

Answer items (i) – (v) by matching the descriptions of environmental destruction activities in List A with the meanings of the respective activities in List B. Write the letter of the correct answer in the brackets. List A (i) Pouring chemicals and waste into ponds and rivers. (ii) Keeping many animals in a small area. (iii) The results of water, air, and soil pollution. (iv) Spreading garbage and chemicals on the ground. (v) Increase of smoke and dust in the atmosphere. List B A. environmental destruction B. air pollution C. water pollution D. soil erosion E. soil fertility F. land pollution G. increase in the amount of rain

1. Kumwaga kemikali na uchafu kwenye mabwawa na mito. (1 mk)
2. Kufuga wanyama wengi katika eneo dogo. (1 mk)
3. Matokeo ya uchafuzi wa maji, hewa na udongo. (1 mk)
4. Kusambaza takataka na kemikali katika udongo. (1 mk)
5. Ongezeko la moshi na vumbi katika anga hewa. (1 mk)

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Answer items (i) – (v) by choosing the correct word from the box and writing it in the blank space. reflection, refraction, absorption, obstruction, scattering, penetration

1. What happens when light passes from one medium to another? (1 mk)
2. What happens when light passes from one medium to another? (1 mk)
3. What happens when light hits a shiny object? (1 mk)
4. What happens when light hits a black object? (1 mk)
5. What happens when light encounters water droplets in the air? (1 mk)

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You are given steps A – E of the food digestion process in the digestive system. Arrange these steps by writing the relevant sentences in the correct sequence. Write these sentences in the blank spaces provided. A. Faeces are expelled from the body through the anus. B. Food is digested and absorbed in the small intestine. C. Food enters the mouth. D. Food travels through the oesophagus to the stomach. E. Water and minerals are absorbed in the large intestine, leaving undigested food residue.

1. Step 1 (1 mk)
2. Step 2 (1 mk)
3. Step 3 (1 mk)
4. Step 4 (1 mk)
5. Step 5 (1 mk)

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Examine the following pictures then answer the questions that follow. (a) Which two devices represent modern means of communication? (b) Which two devices are used as natural means of communication? (c) Which device is not used in communication? (d) How is the device with an antenna important in daily life? (e) Which device provides communication without producing sound?

1. Which two devices represent modern means of communication? (1 mk)
2. Which two devices are used as natural means of communication? (1 mk)
3. Which device is not used in communication? (1 mk)
4. How is the device with an antenna important in daily life? (1 mk)
5. Which device provides communication without producing sound? (1 mk)

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