The oldest reference to a map in China comes from 3rd century BC.
Answer:
B
Explanation:
it's resulted in a world financial crisis
Before the neolithic revolution society itself did not exist people were largely nomad and used crude stone tools (This was called the Paleolithic era)
The sperm will not survive the acidic conditions in the vagina
The fluid produced by the urethral glands neutralizes any residual acidity in the urethra (left there because of the urine that passed previously), that way it won't harm the sperm. For the same reasons, helps to neutralize the acidity of the vagina.
