Problem: Rob is testing the properties of gas. To that end, he experimented with a cylinder of gas in three stages, stage A, stage B, and stage C. In stage A he kept the gas in room temperature. In stage B he heated the gas up. And in stage C he cooled the gas down. Would stage B have more or less kinetic energy of the gas molecules than stage A?

A: more

Problem: John was interested in the Sun's radiations that Earth receives. One of the radiations was in the ultraviolet spectrum. He categorized it as spec A. The other radiation was the visible light. He categorized it as spec B. He then searched online to find the pros and cons of each of them. In spec A, would the radiation be less or more hazardous than in spec B?

A: more

Problem: John and Keith are neighbors. They have been pondering about how to communicate with each other in a doomsday scenario when all the electronic devices would be useless. They connected their houses with three ducts. One of the ducts is filled with air; they called it channel A. Another duct is filled with water; they called it channel B. And the last duct is filled with iron; they called it channel C. They can now transmit sound with these channels of communication; in case, disaster strikes. Would channel B be slower or faster than channel A?

A: faster

Problem: Melinda lived on The Big Island of Hawaii. One day she invited her Australian friend Janice over to visit the islands. Janice was very excited about the invitation. Which person lived closer to an underwater volcano called Loih?

A:
Melinda