Which type of microorganism produces $250$ grams of protein in a single day?

In which of the following media are microorganisms $NOT$ cultured for the production of Single Cell Protein $(SCP)$?

Which of the following is grown on a global scale to obtain Single Cell Protein $(SCP)$?

Which approach of genetic engineering is considered important for reducing environmental pollution?

$A$ person who is allergic to pulses was advised to take a capsule of $Spirulina$ daily. Give the reasons for the advice.

Given below are two statements with respect to single cell protein.
Statement $I$: Single cell protein refers to the crude,or refined edible protein,extracted from pure microbial cultures or from dead or dried cell biomass.
Statement $II$: $SCP$ can be readily used as fodder for achieving fattening of calves,pigs,in breeding fish and in poultry.
In the light of the above statements,choose the correct answer from the options given below.