The looseness of soil has a positive impact on a plant 's roots' growth in that soil.
Air exchange in the root zone is essential for root growth.
Loose soil has increased air exchange, which is essential for plants.
What can enhance a plant's growth?
Options:
1: sunlight
2: tight soil
3: Energy.
4: loose soil
5: Enzymes
6: compacted roots
7: energy
8: compact soil