The right choice is B. People voting in secret balloting for the candidates of their choice.
Answer: In central Africa, the spread of Bantu-speaking people had effects on the environment. Introducing new crops and farming techniques altered the natural landscape. Raising cattle also displaced wild animal species.
Explanation: khan academy
Answer:
Explanation: The main developments in nautical science and technology from the 1450s to 1550s, will be considered just in the so-called era of discoveries, where most European explorers colonized and conquered many settlements around the world. Creating this situation the need to innovate in the field of science and nautical technology, with the creation of inventions as important in the maritime and cartographic environment as were the compass and astrolabe, as well as innovation in problems of transport and manufacture of vessels such as the ships with a variety of masts, which were widely used by the conquerors at that time.
The scientific, technological, social and economic results were important and with a deep Roman and Byzantine seal, giving medieval Europe a political, social, military and technological power, which meant to countries such as Portugal, Spain, England and France the faculty of spreading throughout the world territorially speaking.
Disease and plague brought to rome killed 10 percent of the population
According to my data it will be the first one
