The correct answer is A. Technological advances such as s<em>team power, air brakes, automatica lubricators and steel tracks</em> have affected the railroads very positively, since it has made it possible that the rail network could become a safer, more efficient and more reliable means of transportation for goods.
Other glaze colors had toxins making the pottery unsuitable for storing food
Answer:
B. The french selling the Louisiana Territory to the united states
Explanation:
took the test
<span>Chief of Party. In this role, the president helps members of his or her political partyget elected or appointed to office. The president campaigns for those members who have supported his or her policies. At the end of a term, the president may campaign for reelection.</span>
