\(Calorific \;Value = \frac{Heat \;Produced (in \;kJ)}{ Mass \;of\; Fuel (in \;kg)}\)
=\(\frac{180,000 k\;J}{4.5 \;kg}\)
=\(\frac{1800000}{45}\)
= \(\frac{40000 \;kJ}{kg}\)
Select the correct word from the following list and fill in the blanks.
float, water, crop, nutrients, preparation
| A | B | ||
|---|---|---|---|
| (i) | Kharif crops | (a) | Food for cattle |
| (ii) | Rabi crops | (b) | Urea and super phosphate |
| (iii) | Chemical fertilizers | (c) | Animal excreta, cow dung urine and plant waste |
| (iv) | Organic manure | (d) | Wheat, gram, pea |
| (e) | Paddy and maize | ||