Chemica changes, because when a substance undergoes a chemical change, the substance splits up into two or more different things. Like when rust forms on a nail its because oxygen formed with the iron to form Iron Oxide. Hope I helped ^-^
Answer:
Which of the following was a physical symbol of the split between the United States and the Soviet Union during the Cold War?
the Berlin Wall
the "Iron Curtain"
the Great Wall of China
the red "hotline" phone
Explanation:
Answer:
Ellis Island is a historical site that opened in 1892 as an immigration station, a purpose it served for more than 60 years until it closed in 1954. Located at the mouth of Hudson River between New York and New Jersey, Ellis Island saw millions of newly arrived immigrants pass through its doors
Explanation:
