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Focus definition, a central point, as of attraction, attention, or activity: The need to ... The need to prevent a nuclear war became the focus of all diplomatic efforts. ... What do a.m. and p.m. stand for? .... the point beneath the earth's surface at which an earthquake or underground 
Earth and space science explores the interconnections between the land, ocean, atmosphere, and life of our planet. These include the cycles of water, carbon, rock, and other materials that continuously shape, influence, and sustain Earth and its inhabitants.