MCQOPTIONS
Saved Bookmarks
| 1. |
Top layer of soil is good for plant's growth because: |
| A. | It is rich in humus |
| B. | It is made up of hard rock |
| C. | It is rich in coal |
| D. | It is rich in gravel |
| E. | All of these |
| Answer» B. It is made up of hard rock | |