what percent does ponds all over the world have? please tell?
819075
97% of the worlds water is salt water, 2% would be fresh water locking in glaciers and ice caps, and the remaining 1% would be stored in aquifiers, groundwater, lakes, rivers, ponds, streams. so to answer the question, ponds represent<1% of the worlds water supply
702485
Though 78% of the earth are water bodies, as per a study 88% of the water available in the world is from seas and oceans and not potable. Desalination in some areas are done at a very high cost which is only 0.007%, so it is very negligible. Of the balance 12% or less 50 percent of all potable water is wasted or lost in the developing world; Pollution, with some 2 million tons of human excrement and an ever-increasing volume of untreated discharge from industry going into urban water supplies every day. The ground water table is also depleting very fast and getting contaminated or many areas have become dry. This accounts for +3%. The balance of 3 % are so is available now.\n\nIn the developing world, more than 1 billion people cannot get clean drinking water, and 1.7 billion people lack access to adequate sanitation facilities. The United Nations says that dirty water causes 80 percent of diseases in the developing world, and kills 10 million people annually.\n\nWATER CRISIS IS LIKELY TO STRIKE MOST DEVELOPING WORLD CITIES BY 2010. \n\nThus the position is very alarming and water conservation and Storm water harvesting are being implemented by many countries to save the situation.
426980
5 to 10 %, I suppose, like everywhere else in the world
488001
It`s about 45-50 % !\nBut If you realy means world as the earth !\nMay be there are more trees on the other unknown live planets !\nYou know 50 % is the percentage of 1990 and i guess that now in 2006 it should be 45 % , and sadly i should say if this tree termination method continues 1n 2025 you only can find tree in the museums !\nTry to hold them !\nTry to grow the trees !\nThey are our fathers !
513975
Lakes, river, ponds, streams
954113
The correct answer after a bit of research is 25%. It is high considering the percentage of population there.
910545
Draw your own. They are not hard. \nH2O\nrain falls, runs into the pond. Sun evaporates the water, cloud forms, rain again.\nCO2\npond plants take in CO2, hey make sugar by photosynthesis using the sun for energy. A byproduct is O2. Pond animals breath the O2 and breath out CO2 which the plants use again.
799320
almost all.  Just like anywhere else.   :o)
59337
Earth has a total surface area of 196,800,00 square miles. Approximately 57,300,00 square miles, or 29% of the total surface area is land. Water covers approximately 139,500,000 square miles, or 71% of the total surface area.
426574
Fry and fingerlings are not raised on artificial ponds, they are raised on tanks, pools or man made habitat.\n\nControling the water pH, air and salinity. You will need some equipment to do this, try starting with small handheld before investing on larger-expensive equipments.\n\nAeration is important, making sure that there is enough oxygen in the water. Water source being pump into tank at regular rate to avoid build up of unwanted gas, yes fish inhale oxygen and expel gas.\n\nFeeds are also important, you can either buy, or make, making feeds, you will need knowhow.\n\nFinally, there is a ratio on how many fry/fingerling to a certain size of tanks.
278854
75% earth and 25 % land
339548
not enough space set aside for a pond system.  Most urban/suburban settings are set up by developers for developers.  Ponds bring in 0 revenue.  There's no economic incentive to have a pond system.  It's all drain pipes and curb collections.  Also the maze of zoning regulations prevents integrated ponds as you'd require 1000's of easements to snake across across as many properties privately owned.  That's the short answer.
828711
The better question is what percentage of land is desert, in which case it's something on the order of 4-9%.  Roughly.
646483
Earth - 100%\nMoon - 16.6%\nMercury - 37.8% \nVenus - 90.7%\nMars - 37.7%\nJupiter - 236.4%\nSaturn - 106.4%\nUranus - 88.9%\nNeptune - 112.5%\nPluto - 6.7%
858885
Blue.  The sea is 70% of the world's surface.
328518
stupid quetion ... onion grows in every part of the world
701241
0% of animals have two heads.  I am not saying that no animals have two heads, but the amount is so small that it comes out to 0%.  I would probably say about 1 in 1,000,000,000.