Which of the following statements is true regarding soil pH?

Soil pH can be adjusted is the accurate statement because it indicates that it is possible to alter the acidity or alkalinity of soil through various means. For instance, if the pH is too low (acidic), lime can be added to raise the pH, while if the pH is too high (alkaline), sulfur or other amendments can be introduced to lower it. Adjusting soil pH is a common practice in horticulture and agriculture, as the optimal pH range for most plants is between 6.0 and 7.5, allowing for better nutrient availability and overall plant health.

The other statements present misconceptions about soil pH. While soil pH indeed affects nutrient availability, it is not solely limited to that aspect, as it also influences microbial activity, enzyme function, and the overall health of the soil ecosystem. Soil pH is not irreparable; rather, it is dynamic and can be amended based on the specific needs of the plants being cultivated. Lastly, claiming that soil pH has no impact on plant growth overlooks the critical role it plays in nutrient uptake and the biological processes that support plant health.