Chemistry For generation of biogas, the materials commonly used are Animal wastes Aquatic plants Forest residues Crop residues Animal wastes Aquatic plants Forest residues Crop residues 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 helium oxygen ozone methane helium oxygen ozone methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More stable Lighter than hydrogen More abundant than hydrogen Non-combustible More stable Lighter than hydrogen More abundant than hydrogen Non-combustible ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hard water and soft water can be distinguished by using Dilute acid Detergent Liquid soap Ordinary soap Dilute acid Detergent Liquid soap Ordinary soap ANSWER DOWNLOAD EXAMIANS APP
Chemistry The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is: Dihydroxy phenyl alanine Phenyl alanine Amino phenyl alanine Hydroxy phenyl alanine Dihydroxy phenyl alanine Phenyl alanine Amino phenyl alanine Hydroxy phenyl alanine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Soap is prepared by boiling caustic soda with Glycerine Kerosene oil Fats Alcohol Glycerine Kerosene oil Fats Alcohol ANSWER DOWNLOAD EXAMIANS APP
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