Youngest sea in the world

 This question was asked on Koun Banega Karodpati program.

Question 

Which sea formed around 10,000 years ago, considered to be the youngest sea in the world ??

1.  Coral sea

2. Baltic sea

3.  Andaman sea

4.  Mediterranean sea

Answer 

I know Andaman sea which is near Andaman and Nicobar islands.

I heard the name of Baltic sea and Mediterranean sea.

Don't know about coral sea.

I was waiting for the  answer 

Answer                 BALTIC SEA    !!!!

Baltic sea is the youngest sea in the world from geological perspective. 

It was formed around 10,000 to 15,000 years ago  during the last ice age.

That time, glaciers got retreated and the sea flooded the area.

It is located in northern Europe bordering countries such as Sweden,  Finland and Poland.

Baltic sea is the brackish waterbody with a mix of fresh and saltwater.