They show the most important substances as it can show how they reac in a chemical and how they are able to react
Erik Thorvaldsson, also known as Erik the Red (ir is believed he was called like that for being a redhead), was a Norse explorer, and it is said that he founded the first settlement in Greenland. He he was born in Norway, and was the son of Thorvald Asvaldsson (hence the name Erik Thorvaldsson).
Answer:The historian's primary source is evidence from the past
Explanation:
The historian's primary source is evidence from the past. A secondary source uses evidence from primary sources to try to figure out the past. The historian's dream is to find fresh evidence from the past and, from that evidence, to create a fresh interpretation of history.
Explanation:
Enlightenment thinkers in Britain, in France and throughout Europe questioned traditional authority and embraced the notion that humanity could be improved through rational change. The Enlightenment produced numerous books, essays, inventions, scientific discoveries, laws, wars and revolutions.
MARK AS BRAINLIEST PLEASE
Explanation:
Iran adopted it after the 1979 Iranian Revolution that overthrew the Pahlavi dynasty. Afghanistan adopted it in 2004 after the fall of the Taliban government. ... To some Muslim religious leaders in the Middle East and Africa who advocate it, an Islamic republic is a state under a particular Islamic form of government.
