Problem: The inuit tribe lived and hunted on the shores of the Arctic ocean., very close to the North pole. The weather there was very cold throughout the year. Their distant cousins the umpala tribe, lived thousands of miles away, on the shores of the Indian ocean, where the weather was humid and warm, in a tropical climate.  Which tribe lived near an ocean with higher salinity?

A: umpala


Problem: 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?

A: town B


Problem: Two colleagues studied human evolution, Dan studied early humans, from around 200,000 years ago, while Bob studied human settlements from 10,000 years ago.  Which student learned less about nomadic tribes?

A: Bob


Problem: At a doctor's office, two people come in to get STD tests. John comes in and reports the only symptom he has is a rash on his thighs. Patty says she has seen something leaking out of her vagina, and she's not sure what it is. The doctor takes a urine sample from each and will give them the results in a day or two.  Which person is more likely to have chlamydia?

A: