He made many contributions to physics and chemistry, especially in the fields of discovering electrolysis & diamagnetism.
Answer:Por volta de 1990, a população afro-americana alcançou 30 milhões de pessoas, representando 12% da população americana. Atualmente, segundo fontes de 2005, há 39,9 milhões de afro-americanos, representando 13,8% da população estadunidense
Explanation:
Karl Marx. he wrote the Communist Manifesto along with Friedrich Engels in 1848.
The answer is B
Systemized process of creating inventions
Answer:
A. True
Explanation:
Until the 1830s when railroads projects finally made the way to American society, new transportation technology reduced the travel time twice as was in the past decades. Early nineteenth century, witnessed slower and more difficult mode of transportation. People usually walk in neighborhoods and horses and carts were used for long-distance but bad roads and weather decide the travel time of the journey.
