| 151 | For being able to see three- dimensional pictures we have to use | An epidiascope |
| 152 | Bio gas is the common name of | Natural gas |
| 153 | A man weighing 96 kg consists of approximately ___ litres of water | 66.5 litres |
| 154 | Permanent magnets can be made from | Cobalt |
| 155 | The penetration of x-rays through an object depends upon the object's | Density |
| 156 | The sky appears blue because the earth's atmosphere | Reflects blue light |
| 157 | T.V transmission cannot cover a very large area because | the shape of the earth is spherical |
| 158 | Dolly is the name of the | First cloned sheep |
| 159 | In which country alcohol is used as fuel for vehicles? | Brazil |
| 160 | The most important stimulant in tea leaves is | caffeine |