Q: David was conducting experiments on chemical equilibrium in the chemistry lab. First, he took a chemical system that was at equilibrium. He labeled it as case E. Then he changed the temperature of the system. He labeled that experiment as case T. Finally, he observed two more experiments, case A and case B. In case A forward reaction was favored, and in case B reverse reaction was favored. In which case the reactants concentration would decrease, case A or case B?
A: case A

Q: David works for the government as a statistician. He had to produce a report for the coming annual meeting. This year he is thinking about a report with some lifestyle suggestions for middle adulthood population. To make it easier to understand the needs of middle adulthood population he would compare it with a group who are in their twenties. He labeled the first group as group A; and the latter group as group B. Would group B have faster or slower reaction time than group A?
A: faster

Q: John liked studying about the planets in our solar system. He recently studied and made comparisons between Earth's and Venus's atmosphere. He was amazed with what he found out. Which planet has a thinner atmosphere?
A: Earth

Q: Two cities were located 50 miles away from each other. They received a hurricane warning. Twin city got hit by the Hurricane, while Big city missed most of the effects. Which city experienced more storm surge?
A:
Twin