1) Nitrogen is most important part of..... a) Protein b) Carbohydrates c) Fats 2) Respiration and combustion process consumed...... Gas a) Nitrogen b) Carbon dioxide c) Oxygen 3) ...... Gas easily dissolves in water a) Carbon dioxide b) Nitrogen c) Oxygen 4) From properties of nitrogen is....... a) It burns b) Not help in burning c) Enter process of breathing 5) ...... Is added to the dough on making bread a) Fat b) Oil c) Yeast

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