| 161 | The amount of energy in wheat is | 348 K Calories / 100 gm |
| 162 | In an oil lamp, the oil rises up in the wick due to | Capillary action |
| 163 | A mobile phone sends and receives messages through | Radio waves |
| 164 | Which one of the following sets of colour combinations is added in colour vision in TV? | Red, green and blue |
| 165 | In railway tracks, a small gap is left between the rails | To allow for the expansion during heat |
| 166 | Which one of the following is a metal | Iron |
| 167 | Where does the oxygen that keeps us alive come from? | Carbon dioxide |
| 168 | Which one of the following would give the highest energy per gram? | Fats |
| 169 | The Green House Effect is caused by an excess of | Carbon dioxide |
| 170 | The absorption of ink by blotting paper involves | Capillary action phenomenon |