The Sargasso Sea, located entirely within the Atlantic Ocean, is the only sea without a land boundary.

1. In Rajasthan, men have been wearing a turban on their heads. Safa is not just a dress. In Rajasthan, there is heat for almost nine months and severe heat for three months. In such a situation, several layers of turban protect the head from heat waves and strong sunlight. Rajasthan has also been the land of heroes. Sometimes one had to go through a war of land and pride here. In such a situation, Safa also served as a protection against emergency attacks.

2. The one who tied the turban of Mewar Maharana was called Chhabdar.

The correct answer is the Glyptal. The term "natural polymers" refers to compounds that are produced naturally. Glyptal is a synthetic polymer and does not exist in nature. The polymer substance formed from glycerol and phthalic acid is known commercially as glyptal.