None of the provided options are the correct answer. The tool that has allowed scientists to learn about the characteristics of Earth's layers is a seismic wave.
The tool that has allowed scientists to learn about the characteristics of Earth's layers is the seismograph.
The tool that has allowed scientists to learn about the characteristics of Earth's layers is a seismograph. A seismograph is a device that measures the vibrations of the Earth caused by seismic waves. It records the intensity, duration, and frequency of these waves, which can help scientists understand the structure and composition of different layers of the Earth. By analyzing the data collected by seismographs, scientists can make inferences about the properties of the Earth's layers, such as the crust, mantle, and core.
