I'm not 100% sure... but I would say B.
Answer: True
Explanation:
Eutrophication is a natural phenomena, in this the fertilizers which are rich in concentration of nitrogen and phosphorus due to the effect of surface runoff get deposited in the nearby water body such as river, lake, pond and others. These fertilizers facilitate the growth of aquatic plants in the water body. The excess growth of plants reduces the oxygen content of the water body, which results in decline in the population of aquatic animals and foul smell in water.
Answer:
geographers seek to understand where things are found, why they are there, and how they develop and change over time, also examining how human culture interacts with the environment, and they way locations and places can or have an impact on people.