Science Olympiad Dynamic Planet 2025 – 400 Free Practice Questions to Pass the Exam

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What was the purpose of the global network of hydroacoustic signals developed in the mid-1960s?

To measure ocean currents

To track whale migrations

To detect earthquake activity

The global network of hydroacoustic signals developed in the mid-1960s was primarily designed to detect seismic activity, including earthquakes. This system used underwater sound waves to monitor and locate sounds generated by seismic events, which enabled scientists and researchers to gain a better understanding of the Earth's geological activity. The advanced capability of this network allowed for the detection of distant seismic events, including those occurring in the ocean or remote areas, which would otherwise go unmonitored. The ability to analyze hydroacoustic signals plays a crucial role in the field of seismology, helping to identify and assess the impact of earthquakes and contributing to global earthquake monitoring efforts.

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To study oceanic weather patterns

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