Please read the following passage.
For decades, marine biologists have relied primarily on visual surveys to estimate the populations of large cetaceans, such as the blue whale. These traditional methods involve stationing observers on ships or aircraft to scan the ocean surface for signs of whale activity. However, visual surveys have significant drawbacks. They are highly dependent on favorable weather conditions, limited to daylight hours, and fundamentally constrained by the fact that whales spend the vast majority of their lives submerged and out of sight.
To overcome the limitations of visual tracking, researchers have increasingly turned to passive acoustic monitoring. Because sound travels much faster and further in water than in air, and because many whale species rely on distinct vocalizations to communicate across vast distances, acoustic monitoring offers a powerful alternative. By deploying arrays of underwater microphones, known as hydrophones, scientists can continuously record the marine soundscape, capturing whale calls regardless of weather, time of day, or the animals' depth.
The implementation of this acoustic approach has already yielded substantial scientific dividends. In a recent comprehensive study of the North Pacific, biologists utilized a network of deep-ocean hydrophones initially designed to detect seismic activity. By analyzing the recorded acoustic data, the research team was able to identify previously unknown migration routes and pinpoint critical breeding grounds that visual surveys had missed for years. This breakthrough demonstrated that acoustic monitoring could provide a more accurate and comprehensive picture of cetacean distribution.
Despite its clear advantages, passive acoustic monitoring is not without its own set of challenges. The ocean is an increasingly noisy environment, and anthropogenic sounds from commercial shipping, naval sonar, and offshore drilling can mask whale vocalizations, complicating data analysis. Furthermore, acoustic data cannot currently determine the exact number of individuals in a pod, as distinguishing between a few highly vocal whales and a larger, quieter group remains difficult. Consequently, while acoustic monitoring is a revolutionary tool, most researchers agree it is best utilized in conjunction with, rather than as a complete replacement for, traditional visual surveys.
Which of the following most accurately describes the overall organization of the passage?
- It outlines the limitations of a traditional research method, introduces an alternative methodology, describes a successful application of this alternative, and concludes by discussing its current challenges.Cevap
- BIt presents a long-standing scientific controversy, details a new technology that resolves the controversy, provides a specific case study as proof, and predicts future technological advancements.
- CIt describes the habits of a specific marine animal, explains the technology used to track those habits, summarizes the findings of a recent marine study, and lists environmental threats to the animal's habitat.
- DIt criticizes a traditional scientific approach, proposes a theoretical alternative, refutes the theoretical alternative using experimental data, and advocates a return to the traditional approach.
- EIt outlines a traditional approach, presents an alternative, details a study about seismic activity, and concludes by describing the impact of commercial shipping.