Choose between "hardwood" and  "pine". Question: A drill works slower when drilling in hardwood verses pine. That is because there is more friction when drilling (A) hardwood (B) pine.
hardwood
------
Choose between "noise away from bar" and  "noise near bar". Question: Mary is walking away from the bar on the corner.  As she walks away, the music gets (A) louder (B) quieter.
noise near bar
------
Choose between "horse with no rider" and  "horse with rider". Question: A trainer watched his horse run each day. The horse was able to get to top speed more quickly when no one was riding him than when there was someone riding him. This is because the horse had less weight to move when (A) it had a rider (B) it had no rider.
horse with rider
------
Choose between "river" and  "air". Question: A wolf was running after a rabbit when he was forced to run through a river. He quickly determined that the river was rougher than the air. This means that the _____ warmed more as the wolf passed through it (A) river (B) air
river
------