The correct answer for the question that is being presented above is this one: "TRUE." <span>By the 1990s, all babies born in the United States were screened for… vertigo. pneumonia. schizophrenia. hearing impairment. The statement that is presented is true.</span>
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<span>Karl Marx believed the study of history was: of Class conflict also known as class warfare or class struggle. Class conflict is the difference between classes in a community. It is the tension or antagonism which exists within the community due to (social/economic) positions and their reflected opposed/ different interests. It comes down to different opinions and thoughts from different groups of people based on their race, gender, age and financial differences. Marx thought if he could figure this out he would better understand history!</span>
Answer:
By 1860, 30,000 miles (49,000 km) of railroad tracks had been laid,.
By 1860, 30,000 miles (49,000 km) of railroad tracks had been laid, with 21,300 miles (34,000 km) concentrated in the northeast.