Answer: <u>A metal </u>is rare on Earth but relatively abundant in iron-rich meteorites. It has been found in widespread layers on Earth and it's date of deposition coincides with the major extinction of life on Earth 65 million years ago, possibly indicating a connection between a large impact and this extinction.
Explanation: That metal would be iridium
The effect that the silk road had on trade was massive; The Silk road brought people far across Asia and Europe bringing different aspects of their culture with them.
