Examlex
_______ of an element are atoms containing different numbers of neutrons but the same number of protons.
Q14: _ denotes the vast amount of time
Q18: On large alluvial fans,the _ sediment is
Q21: Most earthquakes occur at great depths.
Q31: The principle of _ holds that,in a
Q34: A silica tetrahedron is composed of four
Q38: _ is an organic rock formed from
Q38: _ are major lines of weakness in
Q40: In the early 1900s the German meteorologist
Q44: Dolostone (dolomite)often forms from limestone.
Q48: Point bars are sandbars deposited in the