Who was the father of canning ______________________?
Who was the father of canning ______________________?
		A. Gay-Lussac
B. Nicolas Appert
C. Tomas
D. Newton
		A. Gay-Lussac
B. Nicolas Appert
C. Tomas
D. Newton
		A. Temperature
B. Humidity
C. Rainfall
D. All the above
		A. NaCl
B. Sulpher dioxide
C. Nitrate
D. All the above
		A. Pseudo pregnancy
B. Psendogene
C. Wrong pregnancy
D. Late pregnancy
		A. Propylene glycol
B. Glycerol
C. Calcium silicate
D. All the above
A. 16
B. 17
C. 18
D. 19
		A. Organic soils
B. Peat soils
C. Muck soils
D. All of these