Some heterotrophic bacteria are present in the copper dumps which indirectly affect metal ________ by affecting the growth and activity of metal solubilizing _______
(a) solubilization; bacteria
(b) solubilization; fungi
(c) activity; bacteria
(d) activity; fungi
I have been asked this question during an internship interview.
My question is taken from Metal Recovery by Bioleaching Process in portion Bioleaching and Biomining for Recovery of Resources of Environmental Biotechnology