No one really thinks about where fireworks came from. The birthplace of fireworks is generally recognized as China. The first ex
plosive mixture was black powder used during the Sung dynasty. It is said that a cook in ancient China found that a mixture of sulfur, saltpeter, and charcoal was very flammable. He also found that it would explode if enclosed in a small space. The first application of this technology was for entertainment. Once the recipe for black powder was perfected, they found that it was easily used as rocket fuel, and they made hand-carved wooden rockets in the shape of a dragon in the sixth century. These rockets shot rocket powered arrows from their mouth and were used against the Mongol invaders in 1279. Which sentence would be the BEST concluding sentence for the paragraph above?
A.
Every July fourth, Americans have a holiday from work and gather to watch a fireworks display.
B.
The word pyrotechnics refers to the art, craft, and science of fireworks.
C.
Fireworks devices were involved in an estimated 8,800 injuries during the calendar year 2002.
D.
The basic idea behind these rockets is still used in rocket powered fireworks today.
<span>b. His new watch is self-winding, but it still needs a battery. It contains a conjunction between the two clauses and has a comma too. Hope this helps. </span>
