How many pairs of letters are there in the word

According to FSS rules,_____shall be responsible for inspection of food business, obtaining samples and sending them to the food analyst.

Increased genetic diversity resulting from extended time in tissue culture is a phenomenon known as:

Which of the following insect is the transmitter of viruses to the plant? 

is a pan-India electronic trading portal which networks the existing APMC mandis to create a unified national market for agricultural commodities.

Consumer" is defined as:

Which technique uses double stranded RNA (dsRNA) as a trigger that targets homologous mRNAs for degradation or inhibiting its transcription translation?

Nitrogen concentration in the atmosphere

Ufra disease in rice is caused by ___

Under PMFBY the premium % to be paid by Farmer of the total cost for  Commercial and Horticultural crops?

Central institute for cotton research (CICR), center for germplasm collection is located at _____