Which of the following represents a change in technology in agricultural production?

A change in technology in agricultural production can be identified through advancements that enhance the efficiency and effectiveness of farming practices. Utilizing GPS services represents a significant technological advancement as it allows farmers to track and manage their fields more accurately, optimize planting patterns, and reduce waste. This precision agriculture technology contributes to better decision-making and resource management.

Similarly, air-conditioned combines and tractor cabs also signify a technological change. These innovations improve operator comfort and efficiency during long working hours, consequently boosting productivity. Enhanced machinery often incorporates advanced features that streamline operations, such as automatic steering and data collection capabilities, which further exemplify progress in agricultural technology.

In contrast, simply farming more acres, while it may increase production, does not inherently qualify as a technological change. It reflects a change in scale rather than an improvement in methods, techniques, or tools used within agricultural practices. Therefore, the combination of utilizing GPS and the introduction of modernized equipment like air-conditioned machinery accurately represents a transformative shift in agricultural technology.