Saved Bookmarks
| 1. |
What are the principal biological system and how they are affected? in 100 words |
| Answer» The 4 principal biological systems are 1) Fisheries2) Croplands3) Grasslands4) ForestsThese four principal are affected on a large scale they are exploited on a large scale, forest are cut down, grasslands are overgrazed , overfishing and use of fertilizer are affecting them too | |