Which action would cause a long-day plant to flower?

Name: Which action would cause a long-day plant to flower?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Long-day plants require a period of uninterrupted darkness to flower. However, if this period of darkness is interrupted by a flash of light, even if it is a brief one, it causes the plant to perceive it as a short day and induces flowering. This process is known as "night-break" and is the reason why long-day plants can flower in the summer when days are longer, and nights are shorter.

Which Action Would Cause a Long-Day Plant to Flower