Hyper IgE syndrome is rare with less than 850 cases reported worldwide. It affects both boys and girls equally. It is due to genetic mutation in the gene on chromosome 4. In some cases, the genetic mutation has not been identified.
Report Abuse. The tropical zone is characterised by strongly monsoonal weather patterns, distinct wet and dry periods which are highly reliable, large quantities of rain and high intensity rainfall, high temperatures, and high rates of energy transformation.
Because these trade winds converge near the equator, the tropical rain belt is known to meteorologists as the Inter-tropical Convergence Zone. Click buttons to play/advance. Monthly average global rain rates. The sequence begins in March, when summer is drawing to a close in the Southern Hemisphere.