In question number 11 above, choose the best option from letters A-D that best completes the gap.
experiments
instruments
approaches
factors
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The correct answer is D. factors.
In the context of scientific inquiry, a scientist looks for underlying factors (common elements, causes, or variables) that account for the facts they observe. The other options don't fit as well: "experiments" and "instruments" are tools used to find information, rather than the underlying causes themselves, and "approaches" refers to the way a scientist works, not the hidden truths they are trying to uncover.
Let's complete the rest of the passage (12-20)
Since you are preparing for JAMB, these types of "cloze tests" often focus on Scientific Method vocabulary. Here are the most appropriate choices for the remaining gaps to help you understand the flow:
11. [D] factors: The underlying causes of facts.
12. [B] experiment: The "method of the controlled experiment" is the standard scientific phrase.
13. [D] conditions: Temperature and moisture are environmental conditions.
14. [A] constant: In a fair test, you keep all variables constant except the one you are testing.
15. [B] method: Using "controls" is a specific scientific method.
16. [D] iron: This is a classic science question—iron requires moisture and oxygen to rust.
17. [C] season: Crop "yield" is typically measured per farming season.
18. [D] inquiries: A synonym for scientific investigations or "asking questions."
19. [D] a hypothesis: A sensible, consistent explanation that hasn't been fully proven yet is a hypothesis.
20. [B] law: Once a hypothesis is tested repeatedly and remains "unshaken," it becomes a scientific law (or theory).
