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. Which sample's layer would protect less from ultraviolet radiation, sample A or sample B?
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Answer: sample A

Two cousins went for a blood test. Tim found out he had hemophilia, while John was normal. Tim had to start taking medication. Which cousin has a lack of clotting factors in the blood?
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Answer: Tim

Iceland and Ireland both used agriculture as a the main component of their economies. Ireland used lots of fertilizer and had big environmental problems as a result. Iceland does a lot of greenhouse agriculture using geothermal energy, so it is more protective towards the environment. Which country caused more algae to grow out of control?
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Answer:
Ireland