Answer :

In ancient Greece, olive oil and sand were used for elemental protection. 1. Olive oil was commonly used by the ancient Greeks as a form of protection against the sun. They would apply olive oil to their skin to prevent sunburn and keep their skin moisturized. 2. Sand was used in Greece for elemental protection in the form of sandbags. Sandbags were strategically placed to create barriers for protection against flooding, erosion, and even enemy attacks in some cases. So, in the context of elemental protection, Greece is the historical civilization where olive oil and sand were used for this purpose.