Waec 2021 Biology Question 23

Practice objective / multiple choice question 23 from the 2021 Waec Biology examination. This question covers Botany .

Waec 2021 Biology Objective / Multiple Choice 2 Difficulty

Topic: Botany

Question 23 WAEC • 2021 • BIOLOGY • objective

INSTRUCTION - D1

                            The diagram is an illustration of the growth of a plant in a water culture. After a few days, the solution turned green and the plant died.

                        

What precaution should have been taken to prevent the solution from turning green?

Answer Options

A. Use a non-green plant for the experiment

B. Aerate the solution daily

Correct Answer C. Cover the culture vessel with opaque paper

D. Keep cotton wool around the seedling to make it dry

Correct Answer

Correct Option:

Cover the culture vessel with opaque paper

About This Question

This is Waec 2021 Biology Question 23. It is one of the objective questions from the 2021 Waec Biology examination.

The question covers Botany .

Difficulty level: 2 .

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