Problem: Given the background: Almost all earthquakes occur at plate boundaries. All types of plate boundaries have earthquakes. Convection within the Earth causes the plates to move. As the plates move, stresses build. When the stresses build too much, the rocks break. The break releases the energy that was stored in the rocks. The sudden release of energy creates an earthquake. During an earthquake the rocks usually move several centimeters or rarely as much as a few meters. Elastic rebound theory describes how earthquakes occur ( Figure below ). and the situation: Two sister cities were both situated on plate boundaries, close to volcanoes, on different continents. Red city was 10 miles from a volcano, while Tree city was 60 miles away. Red city experienced many earthquakes, Tree city few and far between. Answer the following question: Which city experienced less convection within the Earth causing the plates to move?

A: Tree

Problem: Given the background: Charging an object by touching it with another charged object is called charging by conduction. By bringing a charged object into contact with an uncharged object, some electrons will migrate to even out the charge on both objects. Charging by conduction gives the previously uncharged object a permanent charge. An uncharged object can also be charged using a method called charging by induction . This process allows a change in charge without actually touching the charged and uncharged objects to each other. Imagine a negatively charged rod held near the knob, but not touching. If we place a finger on the knob, some of the electrons will escape into our body, instead of down the stem and into the leaves. When both our finger and the negatively charged rod are removed, the previously uncharged electroscope now has a slight positive charge. It was charged by induction. Notice that charging by induction causes the newly charged object to have the opposite charge as the originally charged object, while charging by conduction gives them both the same charge. and the situation: John wanted to charge his electronic gadgets remotely. To that end, he first conducted two experiments, case A and case B. In case A he used conduction, and in case B he used induction. In both cases he used same two objects. Finally, John tried to charge his phone remotely. He called this test as case C. Answer the following question: Would the objects be closer to or farther from each other in case B than in case A?

A: farther from

Problem: Given the background: The water level is seasonal, being lowered by about 10 feet (3.0 m) over the winter. The reservoir fills in the spring from snow melt and underground springs. The lake is usually at full level by late spring, but in the occasional years of low snow melt and low rainfall, it may remain up to several feet below its typical level. Water is let out of the lake in the fall so that ice will not damage docks and other structures around the lake. This also leads to excellent water quality, as a significant portion of the water is replaced every year. and the situation: There are two hydroelectric dams in North Dakota. Both of them has large lakes or reservoirs, reservoir A and reservoir B. Since North Dakota has one the lowest unemployment rates in the country, it's hard to find an engineer to regulate and maintain the reservoirs. This year reservoir A could hire an engineer, but reservoir B failed to find an engineer. As a result, there is no one to regulate reservoir B. The engineer for reservoir A let the water out in the fall. But there was no one to do that for reservoir B. Answer the following question: Which reservior would most likely have excellent water quality, reservoir A or reservoir B?

A: reservoir A

Problem: Given the background: Negative-splitting is a racing strategy that involves completing the second half of a race faster than the first half. The racer runs slow in the beginning, and gradually runs faster as the race progresses. This is typically seen as a conservative racing strategy, but in distance events, many world records have been run with a slight negative split.[7] and the situation: Michael and Robert, two high school sprinters, competed in the 800m sprint earlier today. Both were attempting to implement the negative split strategy, though with varying degrees of success. Both Michael and Robert competed the first 400m of the 800m sprint in 2 minutes, but Michael completed the last 400m in 1 minute and 30 seconds, while Robert completed the last 400m in 1 minute and 45 seconds. Answer the following question: Which athlete had a larger negative split?

A:
Michael