Question

How have humans used salt throughout history? Choose more than one answer.
Nutrition
Power generation
Food preservation
Currency
Communication
De-icing roads
Water purification
Record-keeping

Answer 1

Humans used salt throughout history in the following processes:

• Nutrition

• Power generation

• Food preservation

• De-icing roads

• Water purification.

What is Salt?

This can be defined as a chemical compound which comprises of Sodium and chlorine with the formula being Nacl.

Salt is important to humans and its various uses have been listed above which makes it the appropriate choices.

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