You are provided with specimens: Q1, Q2, Q3, Q4, and Q5. (a) (i) Identify specimens Q1 and Q2 (ii) State two functions of specimen Q2 in soil fertility improvement (iii) Outline three disadvantages of using specimen Q1 in excess quantities (b) (i) Identify specimen Q3 by its common name (ii) Mention one disease associated with Q3 and its causal organism (iii) Give two methods of controlling the disease in Q3 (c) (i) Identify specimens Q4 and Q5 (ii) Differentiate between the roles of specimens Q4 and Q5 in crop protection

1. Outline three disadvantages of using specimen Q1 in excess quantities (1 mk)
2. Give two methods of controlling the disease in Q3 (1 mk)
3. Differentiate between the roles of specimens Q4 and Q5 in crop protection (1 mk)

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You are provided with specimens: R1, R2, and R3. (a) (i) Identify specimens R1 and R2 (ii) Give three reasons why farmers prefer using specimen R2 compared to specimen R1 (iii) State the effect of specimen R1 when applied during the flowering stage of crops (b) (i) Name specimen R3 by its botanical name (ii) State one major pest associated with specimen R3 (iii) Mention two crops commonly attacked by the pest in R3

1. State the effect of specimen R1 when applied during the flowering stage of crops (1 mk)
2. Mention two crops commonly attacked by the pest in R3 (1 mk)

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You are provided with specimens: S1, S2, S3, and S4. (a) (i) Identify each specimen S1, S2, S3, and S4 (ii) Give two uses of specimen S1 on the farm (iii) State three precautions to be observed when handling specimen S2 (b) (i) Describe how specimen S4 could damage farm animals (ii) Mention two ways of controlling specimen S4

1. State three precautions to be observed when handling specimen S2 (1 mk)
2. Mention two ways of controlling specimen S4 (1 mk)

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