Which global weather pattern establishes persistent arid conditions near 30° latitude?

💡 Explanation

Subsidence within the Hadley cells creates high pressure at 30° latitude, reducing precipitation there because descending air warms and dries via adiabatic compression. Therefore, deserts form here, rather than at the equator where moist air rises.

• Which mechanism causes uplift and step-like terrain along normal faults in extensional environments?
• Which outcome is worsened by thermocline breakdown during upwelling?
• Which river characteristic increases the risk of avulsion within a distal alluvial fan?
• Which risk increases when bentonite clay along faults hydrates?
• Which outcome occurs when subduction beneath an island arc increases sediment influx?
• Which mechanism accelerates floodplain widening in a meandering river exhibiting alluvial terraces?