Oolong tea, made from more mature leaves, usually have less caffeine than green tea. On the flip side, mature leaves contain less theanine, a sweet, natural relaxant that makes a tea much less caffeinated than it actually is. That is the theory, anyway.
The highest point in Asia is Mt. Everest which is 8,850 meters above sea level. And Asia's lowest point is the Dead Sea which is 400 meters below sea level.
Of all countries, Lesotho has the world's highest low point at 1,400 m. Other countries with high low points include Rwanda (950 m) and Andorra (840 m). The Maldives have the world's lowest high point at 2.4 m. Other countries with very low high points include Tuvalu (5 m) and the Marshall Islands (10 m). These island countries also have the smallest range between their lowest (sea level) and highest points, and are very sensitive to rise in sea level.