Which of the following pieces is the one most frequently performed of all twentieth-century orchestral works?
a. concertino for harp and orchestra
b. concerto for orchestra
c. "tonight"
d. sonata ii

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

although the crusades failed to capture jerusalem, they had several major impacts on western europe. they increased the authority of the king: sometimes nobles died in battle without leaving an heir in which case the king got their land. kings passed taxes to pay for the crusades.