Please answer this: Two groups of people participated in a geriatrics study. Group D had people over 65 years old, while group Y had people in their 40's in its composition. Which group had people at lower risk of developing pneumonia?
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Answer: group Y

Please answer this: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient. Which group of plants has more brightly colored petals?
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Answer: Group F

Please answer this: Town A disposed of the biomedical waste from their hospital conventionally in a regular dump site for 10 years because it was more convenient, while town B took them to an ecological site where they wouldn't affect ground water and spread disease. Which town is polluting their groundwater less?
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Answer:
town B