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Everyday Science Basic Multiple Questions and Answers.
| 36. | The cow's milk contain how much amount of water in terms of percentage? | ||
| A. | 60% | ||
| B. | 65% | ||
| C. | 72% | ||
| D. | 80% | ||
| 37. | The Green House Effect is caused by an excess of | ||
| A. | Carbon dioxide | ||
| B. | Carbon monoxide | ||
| C. | Carbon tetrachloride | ||
| D. | None of the above | ||
| 38. | Water has maximum density at | ||
| A. | 0°C | ||
| B. | 4°C | ||
| C. | 4°K | ||
| D. | 4.8°C | ||
| 39. | An instrument to detect the purity of milk is | ||
| A. | Lactometer | ||
| B. | Hygrometer | ||
| C. | Manometer | ||
| D. | Sonometer | ||
| 40. | The working principle of a washing machine is | ||
| A. | Centrifugation | ||
| B. | Dialysis | ||
| C. | Reverse osmosis | ||
| D. | Diffusion | ||
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