Final answer:
The weather detection function of radar advises pilots about significant precipitation or turbulence, allowing them to avoid hazardous weather conditions.
Step-by-step explanation:
The radar function that advises the pilot of areas of important precipitation or turbulence is b) Weather Detection. Weather detection radar systems are essential for pilots, as they help identify and avoid hazardous weather conditions. These systems function similarly to air traffic control radar, which assists controllers in managing airport traffic in poor visibility conditions. Using specialized radar technology, weather detection systems can penetrate through obstructions such as cloud layers or fog to reveal areas of significant weather phenomena, allowing pilots to take necessary precautions or alter flight paths.