Please answer this: Two groups of children studied about some of the planets from our Solar system and their atmospheres. Group E studied about Earth, while group V studied about the planet Venus. Which group studied more about clouds made of water vapor?
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Answer: Group E

Please answer this: Two friends went to the doctor because they weren't feeling well. As it turns out Danny had a condition called hypercalcaemia, while Greg had hypocalcaemia. Which friend had an inadequate secretion of parathyroid hormone?
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Answer: Greg

Please answer this: Norm and Ian were two brothers. Norm was a totally normal individual, while Ian had Down syndrome. Their parents loved them both equally. Which brother didn't have an extra complete chromosome 21?
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Answer:
Norm