David got five exercise tips from his personal trainer, tip A, tip B, tip C, tip D, and tip E. Tip A involves weight lifting, but tip B does not involve weight lifting. Tip C involves running, but tip D does not involve running. Finally, tip E does not involve any exercise at all. David has to find out which tips are most useful for him. In which tip the muscles would less likely be weaker, tip A or tip E?
Ans: tip A

Two oceans have divergent plate boundaries at the bottom of their floor. The Arctic ocean has a single dormant divergent plate, while the Pacific ocean has seven diverging tectonic plates under its waters. Which ocean experiences the forming of fewer oceanic crusts?
Ans: Arctic

John was sitting at point C near a railway track. Suddenly, he heard a train coming towards him from point A with constant sound of its horn. Eventually, it reached very close to him at point B. Then the train sped by him at point C where he was sitting, reaching point D after some time. Finally, it reached even farther from him at point E. Which point would have lower frequency, point A or point B?
Ans: point A

Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus. Which student learned less about ants that protect the aphids?
Ans: Joe