Answer:
B.
Explanation:
Lenin seized power in a coup known as the October Revolution.
Chlorine and Mustard gas are types of poison gas, sometimes used during chemical warfare. For example Germany introduced their usage against the Allies during WW1.
B- It led to a period of large-scale emigration out of Ireland.
The Homestead Act was attractive to settlers, because it gave land to anyone over 21, or head of family (even women and former slaves), who applied for land, this land for a very cheap price (or no price at all) and through this it enabled easy settlement. The farmers had to then cultivate the land for a period of time, and if they did not abandon it and tended to it properly, it became their property.
Answer:
The political power of the Abbasids largely ended with the rise of the Buyids and the Seljuq Turks in 1258 CE. Though lacking in political power, the dynasty continued to claim authority in religious matters until after the Ottoman conquest of Egypt in 1517.
