After reading the excerpt, it seems to me that <span>the claim which this excerpt might support is </span><span>B.
Europeans thought the Japanese were superior to the Chinese. I saw a negative attitude towards China (due to the people's treatment) and a totally positive towards Japan. The religion is not mentioned in this excerpt, so I thing this opion is the most suitable. </span>
As the Greeks became skilled sailors, sea travel connected Greece with other societies. Sea travel and trade were also important because Greece lacked natural resources, such as timber, precious metals, and usable farmland. Rugged mountains covered about three-fourths of ancient Greece.
<span>John Tyler was
the tenth president of the United States, and its significance in the
history of the United States, was because he became the first to reach
the presidency, without the need to have run in the elections, for the
death of President Harrison being Tyler the vice president, and having to assume the presidential office immediately. William Henry would have the fate of dying a little after becoming president, so Tyler was the successor. Unfortunately,
Tyler could also remember himself because he did not follow the ideals
of his party, because he was raised in Virginia, with aristocratic
ideas: so he did not support any of the proposed reforms in political
campaigns; <span>and regionalist sentiment and ideas of separation increased in southern slave states.</span></span>
A: Density
All the rest are chemical, not really sure exactly how to explain it. But I hope this helped!
An innovative way was an improvised vaccination.
This consisted of smearing open cuts of healthy people with substances taken from wounds of sick people (for example sick from smallpox) in the hope that they will undergo a mild version of the disease and when the disease catches them, not die.
The risk was that they could get seriously ill, but the advantage was that on average, they had better survival chances than without this "vaccine"
