The answer is A, natural selection.
The answer to this question is that it is made up of salt water marshes.
Silk Road in Western Han Dynasty (206 BC–24 AD) From 139 BC to 129 BC, Zhang Qian set out on his journey to the Western Regions twice, pioneering the world-famous route.
Hard work kept the gods happy
Answer:
About 60% of the people eligable to vote vote.
Explanation: