81.   The research offers possibilities for studies of fundamental quantum-mechanical processes and is useful in precision measurements of fundamental natural phenomena involving motionless atoms.

82.   The theory describes natural phenomena so well that some physicists consider it the most successful scientific theory going.

83.   While the butterflies themselves are not endangered, the migration itself is considered an endangered natural phenomenon.

84.   Witchcraft is often blamed throughout west and central Africa to explain natural phenomenon and illness.

85.   Zhou said there was not enough data, however, to tell if the pattern of thinning was manmade or the result of natural phenomena.

86.   He insisted the explosion was a natural geological phenomenon but Penilla said traces of explosives were found in the debris near the lake.

87.   Belief in witchcraft and the power of individuals to control natural phenomena such as rain is widespread across Nigeria.

88.   The superstitious Chinese often connect natural phenomenon and disasters with impending political changes.

89.   They thought it was a natural phenomenon of developing civilisation.

90.   Shiites observe separate prayers for most natural phenomenons, notably solar and lunar eclipses.