MCQOPTIONS
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| 1. |
Name the elements that help in creating phosphorous cycle? 1. Rocks 2. Earth crust 3. Air 4. Water Choose the correct code |
| A. | 1 and 2 |
| B. | 3 and 4 |
| C. | 1 and 3 |
| D. | 1 and 4 |
| Answer» B. 3 and 4 | |