What are the three intensities of turbulence?

The correct answer identifies the three intensities of turbulence as Light, Moderate, and Severe. This classification is fundamental in aviation as it helps pilots and crew understand the expected conditions in which the aircraft operates.

Light turbulence might result in slight, erratic changes in altitude and attitude, with minimal impact on the flight but noticeable to passengers. Moderate turbulence involves more pronounced changes in altitude and attitude, prompting pilots to advise seatbelt usage for safety. Severe turbulence is characterized by large, abrupt changes that can cause significant challenges, making it difficult to control the aircraft, often requiring pilots to take immediate action to ensure the safety of everyone on board.

The other options introduce different terms that do not align with the standard industry definitions used in turbulence reporting. For example, the use of "Heavy" or "Extreme" is not recognized in the conventional turbulence categorization, which strictly adheres to the Light, Moderate, and Severe classifications as the primary descriptors. Understanding these definitions is essential for effective communication and safety management in aviation.