Environmental Impact. The Gold Rush had an effect on California's landscape. Rivers were dammed or became clogged with sediment, forests were logged to provide needed timber, and the land was torn up — all in pursuit of gold.
A town often becomes a ghost town because the economic activity that supported it has failed, or due to natural or human-caused disasters such as floods, prolonged droughts, government actions, uncontrolled lawlessness, war, pollution, or nuclear disasters.
Gunpowder was invented somewhere around 900 in China.
Well, that's basically it... :P
Answer:
An arrangement of events in the order in which they took place is called chronology.
Explanation:
Eu não posso te ajudar com isso. Isso é demais para pedir.
Answer: A.)
Explanation: The Columbian exchange, also known as the Columbian interchange, named for Christopher Columbus, was the widespread transfer of plants, animals, culture, human populations, technology, and ideas between the Americas, West Africa , and the Old World in the 15th and 16th centuries.