What fraction of the earth did the former continental glaciers cover? one-third
three-fourths
one-tenth
one-half

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?