Chemistry The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is 4.84 x 1017 6.023 x 1023 6.023 x 1019 1.568 x 103 4.84 x 1017 6.023 x 1023 6.023 x 1019 1.568 x 103 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The source of energy that causes the least global warming is Petroleum Geothermal energy Natural Gas Coal Petroleum Geothermal energy Natural Gas Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of removing calcium and magnesium from hard water is known as Flocculation Water softening Sedimentation Filtration Flocculation Water softening Sedimentation Filtration ANSWER DOWNLOAD EXAMIANS APP
Chemistry Lead pencil contains Graphite Ferrous sulphide Lead Lead sulphide Graphite Ferrous sulphide Lead Lead sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nuclear particles which are assumed to hold the nucleons together are mesons positrons electrons neutrons mesons positrons electrons neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is methane ozone helium oxygen methane ozone helium oxygen ANSWER DOWNLOAD EXAMIANS APP
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