It is because of subduction<span>: oceanic crust tends to get colder and denser with age as it spreads off the mid-ocean ridges. It gets so dense, that it sinks in the upper </span><span>mantle </span><span>(subduction). This is like a giant recycling system for oceanic lithosphere! Because continental crust is lighter than oceanic crust, continental crust cannot subduct. We therefore still have some very </span>old continental rocks<span> at the surface of the Earth.</span>
Answer:
Jacques Cartier
Explanation:
He was sent by Francis in 1534 to explore said land. He became the first European to travel inland in North America.
Answer:Roosevelt was the first and only President to serve more than two terms. The amendment was passed by Congress in 1947, and was ratified by the states on February 27, 1951. The Twenty-Second Amendment says a person can only be elected to be president two times for a total of eight years.
