Is this sentence a compound sentence or NOT?

Mr. Dubois is fixing the roof on his house.

What does it mean in the declaration of independence for cutting off our trade with all parts of the world

What did palestinian leader mahmoud abbas promise after succeeding yasir arafat in 2004?

Which of the following are characteristics of effective government leaders? select all that apply : has accumulated enough wealth to operate the government : willingness to accept responsibility : keep a government strong and active : has be a successful in the entertainment field : act as a final point of authority