Belgium and France are two countries participating at a human health meeting. Belgium has a lower biodiversity, while France's biodiversity is much higher. Which country didn't cause the scarcity of fresh water?
Ans: France

Two groups of people when to the doctor. Group A had myopia, while group B had nearsightedness. Both groups got eyeglasses for their conditions. Which group had more people that spend a lot of time working at the computer?
Ans: group B

John is a geologist. He was trying to figure out how the Earth's inner core is made. To that end, he compared earth's physical characteristics to available items. First he took a sample of surface rock, which he labeled as item B. Then he took a sphere of constant density, which he labeled as item C. Finally, he labeled the Earth as item A. Which would be lighter, item A or item B?
Ans: item B

India decided to introduce several exotic species into their environment, while Singapore was very protective of its native species. India encountered big problems with extinction during the following years. Which country had more species go extinct?
Ans: India