Final answer:
Plants need light for photosynthesis; without it, growth is hindered or plants may die.
Explanation:
Plants require light for photosynthesis, a process crucial for their growth and survival. Without light, photosynthesis cannot occur, leading to stunted growth or eventual death. In the absence of light, plants exhibit etiolation, characterized by elongated stems, white or yellow coloration, and small leaves as a strategy to reach light.
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