Which of the following is true regarding the effects of icing on aircraft?

Icing can significantly impair visibility, which is why it is crucial for pilots to be aware of its effects. When ice accumulates on an aircraft's surfaces, it can obscure windows or sensors, leading to reduced visibility for the pilot. Additionally, ice can layer on critical components like pitot tubes and static ports, which can skew the readings of instruments that provide essential data for safe flight operations.

In contrast, other options present misleading implications. For instance, icing does not provide benefits in fuel consumption or improve flight instrument accuracy; in fact, it can increase drag and weight, leading to higher fuel consumption. Furthermore, icing has adverse effects on control surfaces, as it can disrupt airflow and impede the aircraft's ability to maneuver effectively. Understanding the effects of icing is essential for ensuring aircraft safety and performance.