Question

Review the scenario.An ecologist was studying lake ecosystems in and around a major city. The ecologist regularly observed periods of fish kills in the lakes, where fish would die suddenly and in large numbers. The ecologist wondered what was causing these fish kills.By investigating and comparing observations to lakes further from the city, the ecologist noticed that lakes around the city had significant algae growth and reduced oxygen levels in the water.QuestionWhich question most closely relates to the ecologist's observations and collected data on lakes in and around the city?1)Is a predator killing all of the fish?2)Do the fish have a disease?3)Are the lakes polluted?4)Are fish dying due to reduced oxygen in the water?

Answer 1

Step-by-step explanation:

The principal fact about the problem is that the ecologist wondered what was causing these fish kills. According to the problem statement, by investigating and comparing observations to lakes further from the city, the ecologist noticed that lakes around the city had significant algae growth and reduced oxygen levels in the water. This means that the greater the growth of algae, the less oxygen is available in the lakes. Note that fish need oxygenated water to carry out their vital processes, for this reason, we can conclude that the correct answer is:

Answer:

4)Are fish dying due to reduced oxygen in the water?