The denitrification means
Reduction of $NO_2$ to ammonia form by bacteria in the soil
Oxidation of ammonia to nitrate form
Conversion of ammonia to amino acids
Conversion of ammonia and nitrates to gaseous nitrogen in the soil
Which of the following is the first fungicide
The pesticides most toxic to vertebrates are
Match List $ - I$ with List $- II$
List $ - I$ | List $ - II$ |
$(a)$ Aspergillus niger | $(i)$ Acetic Acid |
$(b)$ Acetobacter aceti | $(ii)$ Lactic Acid |
$(c)$ Clostridium butylicum | $(iii)$ Citric Acid |
$(d)$ Lactobacillus | $(iv)$ Butyric Acid |
Choose the correct answer from the options given below.
$(a) -(b)- (c)- (d)$
In maize, hybrid vigour is exploited by
Which one is green manure/biofertilizer