For what purpose is a tunnel being built under the Bosporus?

Hey there :))

Explanation:

Alternately described as a long-lost link between Europe and Asia or the end of the city of Istanbul as we know it, the world's deepest underwater railway tunnel Us on Tuesday under The Bosphorus, connecting two continents by rail for the first time.

answer they showed that organic molecules such as amino acids could be produced from inoragnic molecules;