Mosquitoes are common in the tropics.
Mountains in the Tropics are covered in snow because of lapse rate. The lapse rate is for every 1,000 feet in altitude you travel up a mountain, the temperature drops 31/2 degrees F.
A Boeing 767 has an altitude limit of about 41,000 feet.
Generally, deserts located furthest from the tropics are cold deserts. The closer to the tropics, the warmer the desert. Some are considered cold because they are at a higher altitude and others considered as cool desert because they are on a coastline that has cold ocean currents just off shore
Variations in the altitude of the snow line are caused by the relative location of the nearest coastline and the latitude. At the Equator the snow line is at 4500 m and at the Tropics of Cancer and Capricorn can be as high as 5700 m.
The Gulf Stream carries warm water from the tropics, it might come near Scotland.
The higher the altitude the lower is the temperature so much so that fallen snow will not melt even in summer.
As altitude increases so air pressure reduces, until the limit of our atmosphere is reached. After which the vacuum of space is entered.
Cumulonimbus clouds in the tropics can be found at altitudes ranging from 6,000 to 20,000 meters (20,000 to 65,000 feet). These towering clouds are known for their vertical development and can reach great heights due to the warm and moist tropical air masses.
3. It depends upon the position (Latitude, Longitude and Hemisperical Presence) and also altitude.
show the tropics on a map
malaria mosquitoes