Two islands were situated in different oceans. Hill island used fossil fuels and released a lot of carbon dioxide into the atmosphere, while Coral island was very protective towards the air and the ocean. Which island contributed more to the death of shellfish?
Ans: Hill

Doctors studied two groups of patients. Group W which had people with sickle cell disease, and group A which had normal people in it. Which group had fewer individuals with deformed blood cells?
Ans: group A

Two neighboring police Departments took different approaches to fighting crime, Greenville P.D. did not invest in DNA testing, improved forensics, and information technology, while Grayville took extensive measures of that nature. Which P.D. took a less comprehensive approach in fighting crime?
Ans: Greenville

The southern province was exposed to intensive grazing for many years , and now soil quality is poor and dust storms are present. The northern province has more fertile soil, more trees. Which province experiences less nitrogen loss?
Ans: northern