Bantu introduced several crops while migrating across Africa, yams, sorghum and millet.
"Planting trees throughout Sahel" is the one action among the following actions given in the question that would be the most effective long-term solution to fighting desertification in the Sahel.
That Mayan women would participate in the economic, governmental and farming activities, and cooking food
Answer: The North had way more manpower.
Explanation: The north was always populated to begin with since the living standards were a lot higher than in the south. And when the northern states "forbided" slavery a mass migration of African Americans from southern states moved to the northern states. They migrated to find a better life up in the north(before the civil war). When president lincoln gave the to go sign that African Americans were able to enlist in the army during the American civil war it gave the North a manpower increase, one that the south didn't have since the south did not allow African Americans to be enlisted in thir arms.
Answer:
If 19th-century science is defined by certainty, the experiments with advanced technology and the scientific studies would have been the poof of certainty.
19th century was a period when many ideas, theories and inventions were developing. This era was also known as a modern era of science. The result of the discovering and experimenting would have been recorded in the Journal, some of them still exist. So, there wouldn't have been any loss, whatever the scientists were putting forward were seen in the public. Some of the examples are the Steam Engine, Charles Darwin Theories, telegraph and telephone, medicines.