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Assessment
What is the primary source of energy for most ecosystems on Earth?
Sunlight
Wind
Water
Soil nutrients
How does sunlight affect plant health?
It increases photosynthesis.
It causes dehydration.
It promotes pest infestations.
It reduces nutrient absorption.
Which of the following is a consequence of decreased sunlight reaching the forest floor?
Increased biodiversity of ground plants
Decreased growth of shade-tolerant species
Increased soil erosion
Decreased photosynthesis by understory plants
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