Answer: I need points
Explaination : I’m failing math
The last question is correct: <span>The Nile's flooding was reliable and came at about the same time every year. </span>
It would be "d. Frederic Chopin" who is <span>said to epitomize Romanticism, since he used lofty melodies and dissonant harmonies in new and oftentimes innovative ways. </span>
Answer:
The poisoned substance was mixed with arsenic-free zinc and sulfuric acid, resulting in arsine gas.
The gas was later ignited and decomposed into pure metallic arsenic. This test was highly sensitive and could detect even one-fiftieth of a milligram of arsenic. It was a remarkable discovery, since before that, arsenic was widely used as poison in enormous amounts of murders, impossible to detect and trace.