[Q]: Two brothers went to the doctor's office for a medical exam and blood tests. Dan found out he is healthy and had normal blood cholesterol and calcium levels. Ben however, was told that he had a disease called hypercalcaemia and had to start a treatment for that. Which brother had excess calcium salts deposited in the blood vessels?
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[A]: Ben

[Q]: Pam and Alice studied Earth's climate and vegetation. Pam studied more about high latitudes (70 to 50N), while Alice studied about lower latitudes (30N to 20S). Which person studied less about portions of shrublands ecoregions ?
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[A]: Alice

[Q]: Two farms were supplying produce to a large city. Green farm used organic methods and no fertilizers, while Bean farm used fertilizer to improve production. Which farm contributes more to the consumption of oxygen in the water?
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[A]: Bean

[Q]: 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 less about clouds made of water vapor?
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[A]:
group V