Answer:
Radio has no visual representation.
Explanation:
One of the disadvantages associated with radio as an advertising medium is that it has no visual element unlike other advertising medium which are interactive such as billboards, television and online ads used to engage its viewers.
Answer: D
Explanation: Columnar monuments were used only by the Romans until the 14th century.
not sure what you mean. but history questions are usually based like this:
when napoleon Bonaparte invaded _______ he lost over half his army.
answer: Russia
Something that is seen through unwillingness