Abacterial species that can grow when supplied an energy source and carbon source consisting of h2 and starch, respectively, and nitrate as a terminal electron acceptor, would correctly be considered: a. a hydrogenotroph b. a lithotroph c. anaerobic respiration d. two of a, b, c are correct e. a, b, and c are all correct

E. A, B, and C are all correct

Explanation:

The hydrogenotrophs are the organisms that can metabolize the molecular hydrogen into a source of energy. The lithotrophs are the organisms which use the inorganic substances such as carbon dioxide as their source of electron. The anaerobes are the organisms which use nitrate and sulphates rather than the molecular oxygen as a terminal electron acceptor.

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.