Norman Borlaug also known as the "father of the Green Revolution".
As an American engineer he is one of the key contributors to the revolution in agronomy. He was aided by international organizations to tackle low productivity levels in underdeveloped countries such as Mexico. There was a rupture to the traditional methods of harvesting that caused great numbers of starvation caused by famines.
The Green Revolution included developing high yielding types of cereal grains, modernization of irrigation infrastructure, expansion and improved of management techniques. There were also important changes concerning the distribution of hybridized seeds, synthetic fertilizers, and pesticides to regional and local farmers.
Answer:
The Mayan and other Mesoamerican cultures used a vigesimal number system based on base 20, (and, to some extent, base 5), probably originally developed from counting on fingers and toes. The numerals consisted of only three symbols: zero, represented as a shell shape; one, a dot; and five, a bar.
Explanation:
Social Darwinists believe survival of the fittest would allow for the strong to survive and the weak to die out
Social Darwinists believed that the life of humans in society was a struggle for existence influenced by survival of the fittest
The country that became involved in the Korean War to stop the spread of communism is the United States.