Key is a taxonomical aid that helps in identification of plant and animal species. These keys are based on similarities and dissimilarities in characters, generally in a pair called couplet. Each statement...
1.On heating lime stone release of which glass? Ans. carbon dioxide 2. Plaster of Paris made from? Ans. Gypsum 3.What is the pH of a solution of ph zero? Ans. Acidic 4.setting of plaster of Paris...