Are there any differences between sea salt and table salt?

Yes, the Main essential differences are in taste, texture and
processing in each of them.

- Table salt (Food Salt) ... where it's extracted from, and how it's processed to be ready for usage?

Table salt (Food Salt) is the white salt granules.
Salt is usually extracted from groundwater precipitation, and is processed to get rid of any other minerals mixed with it.

- What's Sea Salt? And how it's processed?

While sea salt is produced from the evaporation of water oceans or water of salt lakes, it's found in fine granules or crystals form.
This kind of salt needs less processing than table salt.
Hence, a few minerals that add that color or taste to the salt remain.

- What's better Sea salt or food salt?

It's commonly known that sea salt is much healthier than table salt. Despite both having the same nutritional value. As both include nearby quantities of sodium as per weight.

- Fact or superstition

Many people falsely believe salt is harmful!
While the fact is it's commonly advised to use a reasonable amount of salt to get its utmost benefits and its complete avoidance affects health badly. Using a pinch of Crystal Pure Salt is enough