\begin{tabular}{l} Sustainability means developing practices that protect the environment while also providing for human needs. Which of the following changes would be most helpful in achieving \\ sustainable agriculture? \\ O Clearing land for agriculture by cutting down trees instead of burning them \\ \hline O Rotating crops to replenish the soil with nutrients \\ O Tilling the ground to remove weeds and create uniform crops \\ O Growing crops that produce only renewable resources \\ \hline\end{tabular}

The most effective change for achieving **sustainable agriculture** is: **• Rotating crops to replenish the soil with nutrients** **Explanation:** - **Rotating crops** helps maintain soil health by alternating different types of crops in the same area across seasons. This practice replenishes soil nutrients, reduces soil erosion, and minimizes the buildup of pests and diseases specific to one crop. **Why the other options are less suitable:** - **Clearing land by cutting down trees instead of burning them:** This action can lead to deforestation, loss of biodiversity, and disruption of ecosystems, which are detrimental to sustainability. - **Tilling the ground to remove weeds and create uniform crops:** Excessive tilling can degrade soil structure, reduce organic matter, and increase erosion, negatively impacting long-term soil health. - **Growing crops that produce only renewable resources:** While focusing on renewable resources is beneficial, it’s a broad statement and doesn’t directly address key sustainable practices like soil management, water conservation, and biodiversity. Implementing crop rotation is a proven sustainable method that supports both environmental health and agricultural productivity. **Answer:** Rotating crops to replenish the soil with nutrients