The first of the hominids to make major migrations was ____________________
Fill in the blank(s) with correct word
Homo erectus
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__________ - the atmospheric conditions occurring at a given time
Fill in the blank(s) with correct word
The center of mass of the Earth-Moon system ________.
A. lies beneath Earth's surface on a line that joins the centers of Earth and the Moon B. is between the Earth and Moon on the line through their centers C. describes the true orbit of the Earth-Moon system about the Sun D. lies beneath Earth's surface on a line that joins the centers of Earth and the Moon and describes the true orbit of the Earth-Moon system about the Sun E. lies beneath Earth's surface on a line that joins the centers of Earth and the Moon, describes the true orbit of the Earth-Moon system about the Sun, and is between the Earth and Moon on the line through their centers
A snowline refers to
A) the latitude demarcating the extent of glacial ice during the last glacial maximum. B) the elevation at which snow accumulation ceases, marking the uppermost point of a glacier. C) an isoline demarcating the extent of snow or ice on a weather map. D) the lowest elevation where winter snow accumulation persists throughout the summer. E) the latitude or elevation at which winter snow accumulates each year.
A sharp ridge created by glacial erosion is called a:
Arete Kettle Moraine Tarn