This is an opinion question tbh I would say true tho!
-since many early African societies hadn't made systems of writing, used oral traditions. Griots passed these on. Kept history alive for generations/ repect
The correct option is A
The Treaty of Non-Aggression between Germany and the Union of Soviet Socialist Republics, colloquially known as the Ribbentrop-Molotov Pact, was signed between Nazi Germany and the Soviet Union by the foreign ministers of these countries, Joachim von Ribbentrop and Vyacheslav Molotov respectively . The pact was signed in Moscow on August 23, 1939, nine days before the beginning of World War 2. The effects of the treaty were diminishing with the growing hostility between both nations until 1941 when the Nazi regime decided to invade the Soviet Union.
Answer:
Option: c. Sewer
Explanation:
Sewer plays a key role in collecting wastewater from human populations more effectively than in the past. Before, the emergence of cities, there was no proper procedure to collect the wastewater in America, which ultimately affected the environment and underground water. As cities began to take shape in America with a larger population, the sewage system came in the late 1850s in Chicago and Brooklyn.
