Please answer the following question: Fact 1: The looseness of soil has a positive impact on a plant 's roots' growth in that soil. Fact 2: Air exchange in the root zone is essential for root growth. Given the two facts above, answer the question "What can enhance a plant's growth?" with the following options: - sunlight - tight soil - Energy. - loose soil - Enzymes - compacted roots - energy - compact soil
A:
loose soil