Final answer:
Minimal or no tillage methods of land use are least likely to cause environmental harm, as they protect soil health and lead to sustainable agriculture practices.
Step-by-step explanation:
Of the various ways to use land, practices that encourage minimal tillage or no tillage methods are least likely to cause environmental harm. Such practices limit soil compaction, protect soil organisms, promote water infiltration, and help prevent topsoil erosion. Moreover, food reserves underground are protected, and soil conditions like moisture and temperature remain less variable, which are beneficial to the environment. These methods fit within the broader framework of sustainable agriculture, which is indicative of a more environmentally friendly approach, as opposed to conventional agriculture that tends to rely heavily on soil tilling.