Monera Group, at the kingdom level, in the classification of life. Unicellular organisms that have a prokaryotic cell type. Monoculture A form of crop cultivation where a single variety of plant is grown in a field. Also see polyculture . A regional scale wind system that predictably change direction with the passing of the seasons.
Monsoon winds blow from land to sea in the winter, and from sea to land in the summer.
Summer monsoons are often accompanied with precipitation. Montreal Protocol Treaty signed in 1987 by 24 nations to cut the emissions of chlorofluorocarbons into the atmosphere . Since 1987 the treat has been amended to quicken the reduction in CFC production and use. Examples of such countries include the United States, Canada, Japan, and many countries in Europe. Also see Less Developed Country .