Alightning conductor usually has a rod made of

The main attribute common to all lightning rods is that they are all made of conductive materials, such as copper and aluminum. Copper and its alloys are the most common materials used in lightning protection.

conductive materials, such as copper and aluminum. Copper and its alloys are the most common materials used in lightning protection.

Explanation:

answer; because they must appeal to a broad cross-section of the population;

answer; you are making a normative argument and i am making a positive argument;