Let's address each question one by one:
### Question 23
**Which one of the following is not a staple food crop?**
- a. Bread
- b. Maize
- c. Rice
- d. Yams
**Answer:**
**a. Bread**
- Bread is a food product made from staple crops like wheat, but it is not a staple food crop itself.
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### Question 24
**Which one of the following observations from the accompanying figure is true?**
- a. Solar was the most energy-demanding renewable source