| 121 | Ptyalin is an enzyme produced in the | Salivary glands |
| 122 | An astronaut inside a spacecraft is in a state of weightlessness. This implies that | The astronaut is outside the influence of the earth's gravitational force |
| 123 | Which one of the following sets of colour combinations is added in colour vision in TV? | Red, green and blue |
| 124 | Water vapour beyond the dew point result in | Condensation |
| 125 | Steel is more elastic than rubber because | Ratio of stress to strain is more |
| 126 | The range of a 100 meter high T.V. transmitter are is about | 30 km |
| 127 | A nuclear reactor harnesses nuclear energy by | Controlled chain reaction |
| 128 | Radar transmits short pulses of high frequency called | Radio waves |
| 129 | If a U-238 nucleus splits into two identical parts, the two nuclei so produced will be | Radioactive |
| 130 | Pituitary gland is located just below the | Brain |