Problem: Jennifer and Justin are examining the principle of chemical equilibrium in their second year organic chemistry course. They are performing a reaction that involves hydrogen gas and glucose as the starting reactants, and the products formed in the reaction are carbon dioxide and oxygen gas. Jennifer and Justin add the materials, and then wait until the reaction has reached equilibrium. Afterwards, Jennifer removes glucose from her reaction mixture, while Justin removes carbon dioxide from his reaction mixture. Given the paragraph above, please answer correctly the following question: Which person's reaction, Jennifer's or Justin's, will begin producing more oxygen gas?

A: Justin's

Problem: Two farms had winds destroying their crops. Hill farm started installing windbreaks, while Valley farm didn't have the funds to do that so they postponed the project. Given the paragraph above, please answer correctly the following question: Which farm had decreased yields as a result of their actions?

A: Valley

Problem: Gary is a high school student examining two cells under a microscope for his biology class. In a petri dish, marked Cell X, Gary sees that substances inside the cell are spreading apart from each other making it less concentrated. In the dish marked Cell Y, Gary sees substances coming together and moving into close proximity to one another. Given the paragraph above, please answer correctly the following question: Pumps are being used in which cell?

A: Cell Y

Problem: Tom and Andy are two old friends. Tom was infected with HIV 20 years ago, and Andy has been helping him ever since. Andy is as healthy as an ox. Given the paragraph above, please answer correctly the following question: Which friend doesn't have a condition that causes death?

A:
Andy