Roman artist practiced which style of art

  There are four main styles of Roman wall painting that have been found: Incrustation, architectural, ornamental, and intricate. Each style is unique, but each style following the first, contains aspects of each style previous to it. Any original paintings were created before the eruption of Mount Vesuvius.

Explanation:

all of them lol cause theres no map

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.