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Q4: The debate over prolongation of life versus
Q19: The materials that compose most of Titan
Q27: Galaxies are aggregations of stars, stellar dust,
Q45: Radiometric dating is based on<br>A)decay of uranium-238
Q58: During the Pleistocene ice age<br>A)there was one
Q69: Neptune was discovered by irregularities in the
Q72: Nebular theory pertains to the formation of<br>A)the
Q102: Landforms created by glacial erosion include<br>A)hanging valleys,
Q132: With respect to the stars, the Moon<br>A)circles
Q148: Erosion by alpine glaciers creates<br>A)V-shaped valleys.<br>B)U-shaped valleys.<br>C)drumlins.<br>D)moraines.