Review the map.
A map titled Global Climate Zones and the Arabian Peninsula. A key shows Tropical = red, Dry = yellow, Temperate = green. The Tropic of Cancer runs horizontally across the middle of the Arabian Peninsula. A majority of the Arabian Peninsula is yellow, with areas of red along the southern end.
How does the climate in northern Arabia differ from the rest of the region?
It is much drier.
It can be milder.
It is much hotter.
It can be harsher.