Problem: A chemist is working in the lab with two beakers, beaker R and beaker T, filled with identical solutions. In her experiment, she is going to pour one liquid into beaker R and the same amount of a different liquid into beaker T. After pouring the liquid into beaker R, there is no noticeable change. Pouring the liquid into beaker T, she observes a change in the liquid. Which beaker has a higher reaction rate?

A: beaker T

Problem: Research team Alpha learned about early human activities, from 200000 years ago, while team Gamma learned about late human activities, 40000 years ago to present times. Which team didn't learn about humans that lived in small populations of nomadic gatherers?

A: team Gamma

Problem: Two islands were located in the Pacific Ocean. Woo island was frequently shaken by earthquakes, but Mud island had no such problems. Which island experienced more stress building because of plates moving?

A: Woo

Problem: Scientists are performing experiments on two different alkanes, Dipophane and Jothane. The scientists put each alkane into a beaker and begin heating each one at the same time to see which will melt first. During this experiment it is discovered that Dipophane melts before Jothane does. Which alkane will have a lower boiling point?

A:
Dipophane