Answer: Travel time decreased as the steamboat could now travel against the current.
Answer:During the Cultural Revolution in China, Mao Zedong mobilized groups of devoted young people who called themselves "Red Guards" to carry out his new program. Mao sought to enforce communist dogma and to rid the nation of the so-called " Four Olds ;" old customs, old culture, old habits, and old ideas.
Explanation: Hope this helped D:
It’s c, cuneiform origins can be traced back to about 8,000 BC and it developed from pictographs and other symbols used to represent trade goods and livestock on clay tablets