Q: San Francisco and Baltimore both have large manufacturing and production industries and both border large oceans. San Francisco has been burning large amounts of fossil fuels recently to fuel their increased manufacturing and production of automobiles. Baltimore, however, has shifted to renewable resources recently, and as a result they have drastically decreased the amount of fossil fuels that are used to produce and manufacture steel. Oceans bordering which city, San Francisco or Baltimore, will have more dead corals and shellfish?
A: San Francisco

Q: Two groups of athletes started new training routines this year. Group A started weight lifting for three months, while Group B, did running exercises. Which group's method of exercise did not contribue to increased efficiency?
A: Group A

Q: Different societies take care of their young differently. It often boils down to economic activities. For example, take two locations, location A and location B. Location A is a large city where life is hectic. Children are usually raised here according to classical attachment. On the other hand, location B is in the countryside where people get to see each other more often. Location B is essentially an alloparenting community. In which location a child would most probably have a single caregiver, location A or location B?
A: location A

Q: David needs to purchase a camera for his photography class. He went to the local consumer electronics store to find himself a good camera. Two cameras caught his eye, camera A and camera B. Camera A had a very small pinhole, but camera B had larger aperture. David needs to decide which camera should he buy. Would Camera A have lower or higher f-number focusing lens?
A:
lower