Dinosaurs lived between 230 and 65 million years ago, in a time known as the Mesozoic Era. This was many millions of years before the first modern humans, Homo sapiens, appeared. Scientists divide the Mesozoic Era into three periods: the Triassic, Jurassic and Cretaceous.
Answer:
Greco-Persian wars was the concept the Persians didn't support
Answer;
-Bering Strait
Explanation;
-The Bering Strait is a waterway that separates Russia from North America. It lies above the Bering Land Bridge (BLB), also called Beringia a submerged landmass that once connected the Siberian mainland with North America.
-To the north the Bering Sea connects with the Arctic Ocean through the Bering Strait, at the narrowest point of which the two continents are about 53 miles (85 kilometres) apart. The boundary between the United States and Russia passes through the sea and the strait.