What is mass media?
media methods that use deceptive information to promote a cause
media methods that provide information and entertainment to a large audience
media methods that target a small number or people with similar interests

the technology changed agriculture in an impacting manner since many people left the field work by a cellular or other technological appliances

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.