In urease test we use indicater phynol red but bacteria positive appear as a pink color. why?

urease test media contains 2% urea and phenol red as an indicator.An increase inPH due to the production of ammonia results in a color change from yellow (ph6.8) to bright pink (ph8.2).

the answer is a) a shiprock was formed by igneous process

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.