Choose the sentence from this excerpt that confirms the value to marine scientists of underwater microphones called hydrophones.
They notice a thick layer near the surface; this is probably the migrating zooplankton. A deeper blob appears: a shoal of fish. This acoustic technology allows marine scientists to more quickly survey an area to get an idea of the organisms found there. But this is only useful if they know what images are associated with each type of organism. To confirm this, they must take physical samples of organisms in the survey area.
The sentence that confirms the value of hydrophones to marine scientists is: “This acoustic technology allows marine scientists to more quickly survey an area to get an idea of the organisms found there.”
Explanation: This sentence highlights how hydrophones enhance the efficiency of marine surveys by providing quick insights into the presence of various organisms, which is essential for marine research. They help scientists gather information without needing to catch every organism physically right away, thus saving time and resources in the research process.