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Environmental Science for letter G
The study of the arrangement and form of the Earth's crust and of the relationship between these physical features and the geologic structures beneath.
The mass of rocks and finely ground material carried by a glacier, then deposited when the ice melted. Creates an unstratified material of varying composition.
Having been covered with a glacier or subject to glacial epochs.
A true-to-scale map of the Earth that duplicates its round shape and correctly represents areas, relative size and shape of physical features, distances, and directions.
Great Circle Route
The shortest distance between two places on the Earth's surface. The route follows a line described by the intersection of the surface with an imaginary plane passing through the Earth's center.
A pattern of lines on a chart or map, such as those representing latitude and longitude, which helps determine absolute location.
water sources found below the surface of the earth often in naturally occurring reservoirs in permeable rock strata; the source for wells and natural springs.
CIA World Factbook 2000