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Why do the major deserts of the world occur around 25 degrees N or S?
Wiki User
∙ 15y ago
The major deserts of the world occur around 25 degrees N or S because the Subtropical High Pressure Systems are located there. Air in the Subtropical High Pressure Systems is subsiding and warming. As a result, very little condensation occurs and any liquid water in the atmosphere evaporates. Therefore, clouds and precipitation are rare. Rivers do flow through some deserts, but they get their water from locations outside the desert. Much of the tropical desert region (especially in Africa) has few mountains, so their effect in blocking moist air is minimal.
Wiki User
∙ 15y ago
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Why do the major deserts of the world occur around 25 degrees north or south of the equator?
Air in the tropics along the equator rises, carrying with it moisture that then falls in the tropics. The dry air then sinks at about 25 degrees north and south forming deserts.
Where are the deserts around the world?
For a list of the 26 major desert areas around the world as well as the countries in which they occur, click on this link.
What is a list of countries that have large deserts?
For a list of the major deserts in then world and the countries in which they occur, click on this link.
How close is the desert to the equator?
Actually, there are no real deserts near the equator. This region is known more as a region of heavy rain and rainforests. Most hot deserts occur about 30 degrees north and 30 degrees south of the equator.
Where are all of the deserts in the world?
For a clickable list of all the major deserts of the world as well as the names of the countries in which they occur click on this link.
Are all hot deserts near the equator?
Why are most of the earth's deserts near the equator?
How many deserts and in which countries can they be found?
There are about 2 dozen major desert areas in the world. For a list of these deserts and in which countries they occur click on this link.
Why do major deserts of world occur around 25 degrees?
At the equator the earth receives the most direct and intense radiation from the sun. This heats the air, which is quite humid, and it rises. It condenses at higher altitudes and rain falls over the tropics. The air, now less humid, begins to sink about the latitudes of 25-30 degrees north and south. This sinking dry air is what causes deserts to form at these latitudes.
Why are most deserts close to the equator?
What is the temperature of deserts with cacti?
Cacti occur only in the Americas and the temperature can vary from -20 to -40 degrees F. in parts of the Great Basin and Colorado Plateau Deserts in winter to over +130 degrees F. in the Mojave Desert in summer.
Why does rainfall not occur in deserts?
Rain does occur in deserts but not as frequently as in non-desert areas.
