Bob is an astrophysicist. He was pondering about the beginning of our universe. He pinpointed the time when the universe just began to exist. He labeled it as point A. To compare it with present situation of the universe he labeled the present time as point B. In which time the galaxies were closer to each other, point A or point B?
Ans: point A

All marine creatures are not fish. There are some mammals, for example, whales, also live in the water. Rob wants to know more about differences between fish and other non fish creatures in the water. He divided them into two groups, group A and group B. Group A consists of fish, and group B consists of non fish creatures in the water. He started to see the differences between these two groups. In group A, would fertilization most likely take place inside or outside of mother's body?
Ans: outside

Two countries used different fuels as power sources for their activities. Alsacia used fossil fuels, while Lorena devised more advanced energy storage devices, therefore relying on electricity. Which country contributed more to climate change?
Ans: Alsacia

Two twin brothers had very different blood pressures. Tom had very high blood pressure, while Dan had low blood pressure. Which brother doesn't have the systolic blood pressure always 140 or higher?
Ans: Dan