<span>b. became even worse than before the war. </span>
Answer:
Boston
Explanation:
From Boston, the fall wave spread across the United States in six weeks. In Philadelphia, 10,959 people died of influenza in October.
Slaves. think the civil war
Goes down as the temperature decreases, and vice versa. Sound's frequency is independent of temperature, while its speed is directly proportional to temperature. Heat, like sound, is a form of kinetic energy. Molecules at higher temperatures have more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly. ... This is faster than 331 meters per second, which is the speed of sound in air at freezing temperatures.
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