Match the following :
Deficiency diseases
(a) A 1.Pellagra
(b)B$_1$ 2.Nictalopia
(c)B$_6$ 3.Pernecious Anaemia
(d)B$_{12}$ 4.Beri Beri
2 3 1 4
1 4 2 3
4 1 3 2
2 4 1 3
Next Question
Which of the following pairs are incorrect?I.Chloroflurocarbons-Refrigerators
II.Methane-Ploughing of fields
III.Nitrous oxide-Enteric fermentation in cows
IV. Carbon dioxide-Burning of fossil fuels