The correct answer is - Cold War.
The rivalry between the two biggest powerhouses in the world, the United States and the Soviet Union, was known as the Cold War. The Cold War period is a period of great rivalry, tension, threats, arms race, space race, technological race, pretty much direct and intense competition in everything in order to prove the world, and the opponent, that they are the better one, the strongest one.
Luckily, this 46 year long period, even though with few situations being right on the edge, didn't resulted in another war, because if it did, it was going to be much worse than the World War II by far.
Plentiful water supply and rich fertile land, basic must for humans , the start of the growth
Adams' paintings have become an essential a part of the American conservation movement, imparting a consistent reminder of the landscapes that want to be protected.
The required details for Ansel Easton Adams in given paragraph
Ansel Easton Adams (February 20, 1902 – April 22, 1984) become an American panorama photographer and environmentalist acknowledged for his black-and-white pictures of the American West. He helped found Group f/64, an affiliation of photographers advocating "pure" images which favored sharp focus and the usage of the full tonal variety of a photograph. He and Fred Archer advanced an exacting device of image-making referred to as the Zone System, a way of accomplishing a preferred very last print thru a deeply technical information of ways tonal variety is recorded and advanced in the course of exposure, negative development, and printing. The ensuing readability and intensity of such pictures characterized his images.
Adams become a life-lengthy recommend for environmental conservation, and his photographic exercise become deeply entwined with this advocacy. At age 12, he become given his first digital digicam in the course of his first go to to Yosemite National Park. He advanced his early photographic paintings as a member of the Sierra Club.
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