ELI5: Explain Like I'm 5

Aeromagnetic survey

Aeromagnetic survey is a way to measure magnetic fields in the air. It uses special instruments that measure the strength of the Earth's magnetic field in different places. The measurements are used to create a map that can tell scientists about what is underneath the ground. This helps us learn about different types of rocks and minerals. Scientists use aeromagnetic surveys to study different things like volcanoes or earthquakes.
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