I believe it’s b race riots
Topographical map has markings to show points of elevation like hills and mountains.
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
B.rely on wind power rather than electricity
People use to believe the universe was centered around the Earth. BUt now with modern technology we know that it is obviously not.