Problem: People from two villages ate lots of salt. People from Salt village used regular salt, while people from Sand village people used iodized salt in their diets, after talking to specialists. Which village had more people experience thyroid gland problems?

A: Salt

Problem: Mike is studying for his zoology class. Today, he is studying about reptiles and amphibians. He found it easy to understand their differences by categorizing them. For that, he classified reptiles as class A and amphibians as class B. Would class A animals have stronger or weaker skeletons than class B?

A: stronger

Problem: Two packs of lions were hunting large herbivores. The Simba pack was ambushing wounded individual prey animals, while the Mobutu pack followed large groups of zebras and other grazers. Which pack was confused less often by the flickering motion of the zebras?

A: Simba

Problem: Two scientists went to Antarctica for research. Tim was assigned to East Antarctica, while John was assigned to West Antarctica. They spent 6 months there. Which scientist experienced more weather fronts?

A:
Tim