The physical structure of soil is improved by the accumulation of water mold mycelium minerals all of these TRUE ANSWER : ? YOUR ANSWER : ?
A heterocyst is a cell that carries out oxygenic photosynthesis a terminally differentiated cell that fixes nitrogen the progenitor of cyanobacterial vegetative cells a type of spore TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following soil microorganism is involved in the reduction of sulfates to H2S? Rhodospirillum Thiobacillus thiooxidans Rhodomicrobium Desulfotomaculum TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statement is not true about composition of biogas? Both (a) and (b) It is composed almost exclusively of methane and carbon dioxide It also contains with traces of H2S, N2, H2and CO It also contains with traces of O2 and Cl2 TRUE ANSWER : ? YOUR ANSWER : ?
Denitrification may be distinguished as dissimilative both (a) and (b) blue baby syndrome assimilative TRUE ANSWER : ? YOUR ANSWER : ?
Degree of compost maturity can be assesed by germination test None of these both (a) and (b) infrared technique TRUE ANSWER : ? YOUR ANSWER : ?
Most soil protozoa are flagellates or amoebas, having their dominant mode of nitrogen as all of these ingestion of bacteria ingestion of mold ingestion of fungi TRUE ANSWER : ? YOUR ANSWER : ?
The crops which are involved in nitrogen fixation are all of these bean and lupine soybean alfalfa and clover TRUE ANSWER : ? YOUR ANSWER : ?
Nitrogen fixation refers to the direct conversion of atmospheric nitrogen gas into nitrate ammonia glucose ATP TRUE ANSWER : ? YOUR ANSWER : ?
Bacteria, as a group, are responsible for sulfur oxidation nitrogen fixation all of these nitrogen oxidation TRUE ANSWER : ? YOUR ANSWER : ?