Adam is playing with some magnets which have a positive and negative pole. He tries to push them together but cant seem to do it. when he flips one of the magnets around that actually snap together very quickly. Will pushing two positive ends of a magnet together increase or decrease potential energy?
Ans: increase

Mary and Beth both went to see their blood test results. The Doc told Mary she has high cholesterol and she had to change her diet and lifestyle. Beth had a normal cholesterol level. Which patient had higher LDL levels?
Ans: Mary

Berg village and Hill village are renowned for the high number of cyclists living there. Berg village dealt with many traffic casualties because of narrower streets and lanes, While Hill village had wide streets, more traffic signals and a greater number of cyclists. Which village had a lower crash per cyclist ratio?
Ans: Hill

Two researches studied adolescents during puberty. Tim studied males, while Dan studied females. Which researcher didn't observe that growth and development of muscles occur toward the end of the growth spurt in height?
Ans: Dan