The marine biologists studied two areas of the Black Sea. Area A, situated at the mouth of the Danube River, which presented high levels of water stratification, because of the fresh water discharged by the river; and area B, situated 35 miles south, where the water was less stratified and more oxygenated. Which of the two areas had less phytoplankton?
Ans: area B

Due to an increase in the number of factories releasing carbon dioxide the concentration of it has increased. Recent reports show a correlation between increasing levels of carbon dioxide and the average global temperature increasing. Given the average temperature increases even more, will the concentration of carbon dioxide have increased or decreased?
Ans: increased

Two friends were involved in a car crash. they both survived, but Mike had a serious brain injury. Vince was OK, he didn't experience any significant injuries. Which friend didn't experience problems with mental abilities?
Ans: Vince

George is going camping and forgot to bring water with him. He decides to collect water from a nearby stream and boil it to make it safe for drinking. Given George removes the water from the fire to let it cool down so he can drink it, will the entropy increase or decrease?
Ans: decrease