Jet Streams and Cyclones

Jet streams are fast-flowing, narrow air currents found in the tropopause of both the Northern and Southern Hemispheres, not just the Northern (Statement 1 is incorrect). The 'eye' is a feature exclusive to mature, intense Tropical Cyclones; extra-tropical (temperate) cyclones and weak tropical depressions do not develop an eye (Statement 2 is correct). The eye of a tropical cyclone is a region of descending air, which compresses and warms up. Therefore, the temperature inside the eye is actually warmer, not lesser, than the surrounding cloud wall (Statement 3 is incorrect). > One-line conceptual takeaway: The eye of a mature tropical cyclone is a calm, distinctively warm-core center created by subsiding air currents. Answer: (c).