Which is not true of the Intertropical Convergence Zone? A. It's a high-pressure zone with sinking air. B. It features heavy precipitation. C. It is also known as the doldrums. D. It's where the trade winds collide. The statement that is not true about the Intertropical Convergence Zone is: A. It's a high-pressure zone with sinking air. The Intertropical Convergence Zone (ITCZ) is a low-pressure zone near the equator, characterized by rising air and converging trade winds from the Northern and Southern Hemispheres. Thus, statement A is incorrect. The convergence of the winds leads to the formation of cumulonimbus clouds, which cause heavy precipitation and thunderstorms, making statement B true. The region is also known as the doldrums because the winds are typically calm, making sail-powered transportation difficult, as stated in statement C. Finally, the ITCZ is where the trade winds converge, and not where they collide, making statement D incorrect.