Answer: a. I, II, III, IV
Explanation:
The Boston strike of 1919 saw the Boston Police go on strike after their Police Commissioner Edwin Curtis, refused to deal with any form of union activity in the Boston police force.
As a result of the strike, there was violence in the city and Calvin Coolidge who was governor at the time, called in the National Guard. When order was restored, Edwin Curtis fired the AFL representatives and other striking officers and replaced them with new and better paid ones.
Answer:
The Reformation: germany and lutherianism
Explanation:
Luther translated the bible into germany and continued his output of vernacular pamphlets
(correct me if im wrong)
The correct answer is B. An underground lake
Explanation:
Sound moves more slowly in liquids or gases than in solids, in which particles are together. Additionally, the speed of sound is measured in meters per second or m/s. In this context, if the speed of a sound wave reduced from 4,000 m/s to 1,500 m/s while traveling through the surface of Earth, which is solid, it is likely the cause is a change in the medium the wave is going through.
Moreover, the average speed of sound in air is below 400 m/s, this suggests the sound was not traveling through an open cavity. However, the speed in liquids such as water is around 1480 m/s, this is quite similar to the second speed registered. According to this, the sound wave slowed because it was traveling through a liquid medium; therefore, the answer is an underground lake.
