One of these regions, Ladakh, is a high altitutde desert with temperatures sinking to minus 40 degrees Celsius in winter.
(One of these regions; is; a high altitutde desert with temperatures sinking to minus 40 degrees Celsius in winter) (temperatures; sinking; to minus 40 degrees Celsius in winter)
One of these regions temperatures
is sinking
a high altitutde desert with temperatures sinking to minus 40 degrees Celsius in winter
to minus 40 degrees Celsius in winter