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search World map of the tropical zone highlighted in red.   This
area includes all the areas of the Earth where the sun reaches a
point directly overhead at least once a year. The word "tropics"
comes from Greek tropos meaning "turn", because the apparent
position of the Sun moves between the two tropics within a year.
The word Tropical specifically means places near the equator.
The word is also sometimes used in a general sense for a
tropical climate, a climate that is warm to hot and moist year-
round. This includes tropical rainforests with lush vegetation.
However, there are places in the tropics that are anything but
"tropical" in this sense, with even alpine tundra and snow-
capped peaks, including Mauna Kea, Mt. Kilimanjaro, and the
Andes as far south as the northernmost parts of Chile and
Argentina. Places in the tropics which are hot and dry include
the Atacama Desert, Sahara Desert and Central Africa and
Northern Australian Outback.  People