You are presented with the question "What can enhance a plant's growth?" and the following answer choices: 
- sunlight
 - tight soil
 - Energy.
 - loose soil
 - Enzymes
 - compacted roots
 - energy
 - compact soil

Now knowing that the looseness of soil has a positive impact on a plant 's roots' growth in that soil and air exchange in the root zone is essential for root growth, choose the best answer.


 

    loose soil     