In the past, scientists believed that surface formations on Mars were canals, built by inteligent beings Scientists later proved that the canals" were simply natural formations. Which of the following provided evidence that there were only
natural formations on Mars?
Probes were sent to Mars that collected data about the planet's surface
Astronauts landed on the Moon and observed different surface conditions there
A survey was conducted to see how many people thought there was He on Mars
A computer model simulated the formation of landforms using data from geological fieldwork on Earth
Answers: 3
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