A study was done on a species of flightless bird in the Amazon. Over recent years some of these birds have begun to learn to fly when previously this was impossible. Scientists later discover that a mutation has allowed some of these birds to be able to fly, allowing them extra safety from predators. Will the mutation in the bird species increase or decrease their chance of survival?
Ans: increase

Leaf farm and Plum farm provided the neighboring counties with quality produce year-round. plum farm used conventional farming methods such as fertilizer and pesticides, while Leaf farm used alternative eco-friendly methods only. Which farm caused fewer dead zones in the oceans?
Ans: Leaf

In 2016, the subtropical ridge across North America migrated far enough northward to begin monsoon conditions across the Desert Southwest from July to September, but in 2017 the atmosphere dried out across the Desert Southwest, causing a break in the monsoon regime. Therefore a wet year was followed buy a dry one, and the fires started again. Which month of the year was drier, September 2017 or August 2016?
Ans: September 2017

Two researchers studied air quality over the North Pole, and over Antarctica. Dan was more fond of the south pole, so he studied Antarctica, while Colt liked reading about the North Pole. Which researcher learned more about chlorine gases?
Ans: Dan