Describe how the Hadley cell moves air particles at 30° North and South (you must include warming, air pressure, the direction of air movement and condensation/clouds)? [Worth 4 marks]

Afarmer who is grown corn for the past five years notices in the sixth year that the his harvest is significantly smaller, despite an increase in labor on the farm. the following year, the harvest continue to decline. which of the following explanations most plausibly accounts for the reduction in corn yield? a) soil degradation b) desalinization c) better irrigationd) terracing