Please answer this: The ozone layer helps organisms by protecting them from Sun's ultraviolet radiation. To find the usefulness of ozone layer Mike wanted to see how much ozone are there in the atmosphere. He then collected three samples of atmosphere, sample A sample B, and sample C. Sample A was collected from the upper portion of the stratosphere. Sample B was collected from the lower portion of the stratosphere. Sample C was collected from the lower atmosphere. Would sample B have higher or lower concentration of ozone than sample A?
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Answer: higher

Please answer this: Two farmers from the same village raised animals. The village was situated in a hot climate. They took the animals to graze on pastures nearby. Tom took his animals to a silvopasture, while Bill took his to a grassland. Which farmer had fewer animals grazing in a shaded environment?
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Answer: Bill

Please answer this: Two neighboring regions were exposed to different levels of abiotic stress. Eastern region was exposed to high levels of abiotic stress, while Western region was almost stress-free. Which region had a lower biodiversity?
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Answer:
Eastern