What is the weathering process in Tropical Deserts?
142231
There is no one weathering process in tropical deserts. Tropical deserts have exactly the same weathering processes as occur everywhere else on the planet.
452740
http://www.cartage.org.lb/en/themes/Sciences/Earthscience/Geology/Soils/FormationSoils/WeatheringSoils/ChemicalWeathering/chemicalweathering.htm\n\nhttp://cse.cosm.sc.edu/hses/Weather/ChemWeat/frames.htm\n\nhttp://en.wikipedia.org/wiki/Weathering\n\nhttp://visearth.ucsd.edu/VisE_Int/platetectonics/chemweath.html\n\nhttp://regentsprep.org/Regents/earthsci/units/weathering/weathering.cfm\n\nsearch chemical weathering on the net.
1035040
The reason it doesn't rain is because the area is located under an almost permanent high pressure system.\n\nThat is because the surface air rises at the equator due to the higher temperatures. As the equatorial air rises it cools and the water condenses out and fall as rain. The cold air then falls back to the surface in those two sub-equatorial belts. The air at this stage is depleted of all moisture, and because the air is falling it creates a high pressure system that prevents rain producing weather systems from developing.\n\nThat is a fairly simplistic summary of some complex weather systems, but it suffices to explain why most of the Arabian Peninsula is desert.
478862
Abrasion by wind-driven sand.\nParticle removal by wind alone.\nDecomposition and weakening due to sunlight (especially the UV).\nCracking due to temperature changes.\nThis doesn't include biological damage which can be severe due to chemicals secreted by various growths such as lichen.
134471
In wet/moist climates
1130160
The most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide), usually in the form of quartz which because of its chemical inertness and considerable hardness is quite resistant to weathering. However, the composition of sand varies according to local rock sources and conditions.
819968
weathering is where the material is actually broken down where as erosion is what moves it to another place
645256
Most sand is composed of silicon dioxide (quartz) which is very resistant to acids and abrasion, and that is also the reason beaches have sand. Whether the erosional force is air or water, most other materials are more easily removed, leaving behind the sand. Often this process took place in the ocean, then plate tectonics (the same force that built the mountains you mentioned) or sea level fluctuations leave the sea bed exposed to become a desert. So yes, many deserts were once part of a seabed, and often marine fossils can be found in outcrops of desert bedrock.
1135290
(1) The term desertification is  applied to land degradation in dry lands.\n\n(2) It is  resulting mainly from adverse human impact. “Land” in these terms includes soil and local water resources, the land surface and vegetation or crops, while degradation implies a reduction of resource potential.\n\n(3) There are several causes of desertification.\na) Fuelwood crisis\nb) Overcultivation \nc) Poor management of irrigation schemes\nd) Mechanical techniques \ne) Erosion made from Poor land use pattern\nf) Negative results of deforestation
500664
During the process of erosion, the surface of a rock is broken down.\n\nIt can be done by one or two means...\n\nMechanical weathering: rock is broken down into smaller pieces through frost wedging, abrasion, exfoliation, etc.\n\nChemical weathering: rock is broken down into one or more new substances usually through the action of water. Water reacts w/ iron to produce iron oxide. Water also reacts w/ other elements & compounds to produce mild acids that eat away at the surfaces of rocks. Most of the acids are completely natural while some are caused by pollution.\n\nBoth of these can act together to break rock down faster. When a rock has been mechanically weathered it's surface area will increase allowing the chemical weathering to occur at a faster rate.
466356
I'm not sure about the Sahara specifically but in most deserts if you see a desert plant, such as a cactus, it generally indicates the presence of a small amount of hidden or trapped water underground. This is why no one in a desert would dig for water in a place that does not have a plant in it. It would be a waste of time. So it indicates the presence of water.
480792
Deserts can form in several ways that I know of...\n\nRainshadow effect on the leeward side of a mountain range. Most of the water is wrenched out of the air masses before they reach the other side of the range. This is due to the lifting of the air. It is forced to rise, condenses due to adiabatic cooling, & precipitates.\n\nThe most influential cause would be high pressure belts located around the world. These places are roughly located around the tropics of cancer & capricorn. In these areas, the high pressure is pushing down air. When there is a continuous belt of high pressure, air doesn't rise. If air doesn't rise then clouds can't form & rain won't happen. The Sahara & the Kalahari in Africa are examples.\n\nAnother would be inland deserts. They are so far removed from sources of moisture that they simply never get any. If I am not mistaken, the Gobi Desert is one.
478890
Generally desert.  Look it up at the library or online - you can do that, ya know.
488248
Water loss from leaves is called transpiration and is greatest when it is hot.\nWhen a mass of warm, moist air is cooled the water vapour will condense and clouds are seen. As cooling progresses the droplets coalesce and fall as rain.\nThis cycle is most obvious in rain forests.\nBoth transpiration and evaporation from the sea and lakes contribute to water vapour in the air, but over continental areas transpiration from trees is of greater importance. Deforestation in these areas leads to dessertification.
706461
Erosion forms sand\nSand settles as sediment\nSediment hardens over time\nVoila, Sandstone
270375
It depends on a lot of things. Among them, you should consider the amount of erosion, presence of water, wind, all those weathering factors that could impact the rate at which dirt (I'm guessing) accumulates.
420369
CONDENSATION, it's the same way we get rain!  water evaporates from heat, it turns into vapor(clouds) and when they get enough water, it rains!