What is Italy's main economic activity?

Answer 1

The same as it is in just about every developed country - growing and preparing food and beverages, retail sales and shopping of goods and food, housing (renting, construction, maintenance, etc.), schooling, medical care, banking, etc.

It is a very rare society where more than a half of the work is connected to export. In Italy, the GDP is about $1.8 trillion and the exports are about $0.5 trillion.