Chemistry Heavy metal pollution of water is caused by: Domestic sewage Acid Plants Wood burning Paints Domestic sewage Acid Plants Wood burning Paints ANSWER DOWNLOAD EXAMIANS APP
Chemistry The new strain of bacteria produced by biotechnology in alcohol industry is Bacillus subtilis Saccharomyces cerevisiae Escherichia coli Pseudomonas putida Bacillus subtilis Saccharomyces cerevisiae Escherichia coli Pseudomonas putida ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sea water is saltier than rain water because Sea beds have salt producing mines The air around the sea is saltish Sea animals are salt producing Rivers wash away salts from earth and pour them into the sea Sea beds have salt producing mines The air around the sea is saltish Sea animals are salt producing Rivers wash away salts from earth and pour them into the sea ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is usually a mixture of : Calcium aluminate and calcium ferrate Calcium silicate and calcium aluminate Lime stone and silicon dioxide Calcium silicate and calcium ferrate Calcium aluminate and calcium ferrate Calcium silicate and calcium aluminate Lime stone and silicon dioxide Calcium silicate and calcium ferrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is usually extracted from sea water is Mg Ca K Na Mg Ca K Na ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS