Integrated Science (Objective) actual papers. #WASSCE2024🇬🇭
Note: WASSCE objectives are now serialised based on each region.
Do not copy any objective solution you see online.

Solutions 👇

1. B. Vital body processes
2. C. Condenser
3. A. 2-chloro-3-methylbut-2-ene
4. A. Ginger and fern
5. C. Covalent
6. A. Bacteria
7. A. Broilers
8. B. Graphite
9. A. 2.5 Ω
10. A. Flute

11. B. Insect attack
12. B. I and III only
13. C. Ciliary muscle
14. B. I and III only
15. D. Urea
16. C. Nucleons
17. C. Reducing sugars
18. A. Size
19. D. Ribosome
20. B. Carbon, hydrogen, and nitrogen

21. B. Dehorning
22. A. Mg(HCO₃)₂
23. A. 2
24. B. Nitrates would be added to the soil
25. C. Hydrogen
26. A. Gamma rays
27. B. Liver
28. C. Mixed farming
29. B. Stratosphere
30. B. -112°C

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### Questions based on Fig. 1:

1. Name each of the items labeled I, II, III, IV, and V:
- I: Grafting knife or cutting tool
- II: Rootstock (part of the plant that provides the root system)
- III: Scion (the plant section that will be grafted onto the rootstock)
- IV: Wound healing band or grafting tape (used to secure the graft union)
- V: Grafted plant

2. State one observable feature for the stages A1, A2, B1, and B2:
- A1: Clean cut made on both rootstock and scion, preparing for grafting.
- A2: Alignment of the cambium layers of rootstock and scion.
- B1: Proper wrapping of the graft with a healing band or tape.
- B2: Successful healing of the graft union with no visible gaps.

3. Name each of the methods of propagation illustrated in A and B:
- A: Wedge grafting (A method of grafting where a wedge-shaped cut is made in both scion and rootstock.)
- B: Whip grafting (This involves making diagonal cuts on both scion and rootstock and tying them together.)

4. State two precautions to be taken in the method labeled A:
- Ensure that the cuts made on the scion and rootstock are clean and precise to allow proper fusion.
- Properly align the cambium layers of the scion and rootstock to enhance the chances of a successful graft.

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### Questions based on Fig. 2:

1. Name the group of crops to which the crop labeled C belongs:
- C: This looks like a tuber (possibly a sweet potato or cassava). It belongs to root crops.

2. Give one characteristic feature of the crop labeled C:
- Root crops like C store nutrients in their enlarged underground storage organs (tubers).

3. Describe damage from the crop pest labeled D:
- D appears to be a rodent (like a rat). Rodents damage crops by gnawing on roots, tubers, and stems, causing direct crop loss and contamination.

4. State one method of controlling the pest labeled D:
- Rodent control can be done by using traps or poison baits. Alternatively, physical barriers like fencing can be used to prevent access to crops.

5. Give two ways in which the crop labeled D can be propagated by tubers:
- Tubers can be propagated by:
- Cutting the tuber into pieces, each containing at least one eye (bud), and planting them.
- Direct planting of whole tubers in the soil

Q.3 I - Flat bottomed flask
II- cork
III-Thistle funnel
IV-Delivery tube
V-Beaker
VI - CO2 gas
VII - conical flask

Q.3

Q.2

More Answers for Q.2👇