How many race's of human in the world?
358340
Traditionally they've been classified as:\nCaucasoid - in Europe, the Middle East, and India (all have wavy hair, thick body hair, and prominent noses)\nMongoloid - Central, Eastern, and Southeast Asia, and the Native Americans (straight black hair, broad faces)\nNegroid - in Africa (curly black hair, dark skin)\nAustraloid - the Australian Aborigines (dark skin, wavy hair)\n\nthe "mongoloids" are cold adapted, they came from Siberia\nthe "negroids" are heat adapted\nthe "caucasoid" and "australoids" are more "primitive" so they never really developed adaptive features\nHowever, these adaptations are meaningless now, since we have technology and brainpower to survive\nAlso, these descriptions are somewhat useless since all human races can interbreed with one another, meaning we're all really one race\n\nMany of the terms have been discarded since some of them sound offensive (mongoloid, negroid)
567086
Human race is termed in reference to the sociological system while human species is in reference to the biological system.
860990
Humans are in the:\n\nDomain:  Eukarya\nKingdom: Animalia\nPhylum: Chordata\nSubphylum: Vertebrata\nClass: Mammalia\nOrder: Primate\nFamily: Hominidae\nGenus: Homo\nSpecies: Homo sapiens\nSubspecies:  Homo sapiens sapiens\n\nHumans are further broken down into races based on physical characteristics such as hair type and color, skin color, features, etc.
239976
there is only one race the human race and we are losing! white is actually considered the Caucasians race.
977134
There are 194 countries in the world today
321604
I haven't been able to find any exact numbers, but since you asked for fraction, it's about 1/3 or about 2 billion people.
359253
There are approximately 1.6 to 1.7 million described species on Earth. Estimates exceed 100 million species, but the difficulty lies in our ability to search for and describe them all (some even estimate there are over 100 million bacteria species alone and that our techniques, and interest, to find them limits such numbers).
139089
According to the International Programs Center, U.S. Bureau of the Census, the total population of the World, projected to 02/13/06 at 22:14 GMT (EST+5) is\n\n6,497,535,673\n\nBelow is a cool program that counts the number of people in real time.. check it out, it also tells you the number of people on a particular day.
607832
Unknown. We don't even know for certain how many there are now. There's at least three, but some scientific research indicates there may be as many as 11.
1111667
Projections have the world population hitting six billion sometime around the middle of next year. Beyond that, it's hard to give you an exact answer. We can tell you that there are approximately 25 more people in the world than there were when you started reading this paragraph. That's because current research indicates that about five people are born every second, while two people pass away, leaving us with a population rate of three new humans per second.\n\nhere I found this site also... this is better and this can show your 8 year old alot more!  Have fun!\n\nhttp://www.census.gov/population/www/popclockus.html
20876
Asia Only          364,270,713  \nRest of the World  653,786,676\nWORLD TOTAL        1,018,057,389\n\nhttp://www.internetworldstats.com/stats3.htm
401973
Lots of them.  Race is an easy one.
387319
We are all one as a human race yet we are all diverse in our thoughts, emotions, and actions.  This delicate balance is what keeps the human race going.
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The human race consists of 3 distinct racial groups--mongoloids, caucasoids and negroids.  Each group is defined by color/texture of their skin, hair, eyes and facial/body structure.  All ethnicities derive from these groups.  \n\nThe human race possess the most complex brain which can be used for good or for evil.  Unfortunately, with world population approaching 7 billion, we will overrun and destroy the blue earth with fossil fuel.  Oil is finite. Clean water is finite.  Food production at full capacity cannot feed all the hungry people.  Waste management is another issue.  This is the reason for natural disasters like tsunamis, earthquakes, hurricanes, droughts, floods and diseases.  The earth will "clean" itself.  War?  People make war due to intolerance of political and religious viewpoints.\n\nAfrica is probably the worse place in the world to be born now.  Tribal warfare and AIDS will destroy the African continent.  Oprah Winfrey is right to support the education and empowerment of African women because African men are stupid and selfish.  They are the ones who have killed Africa with AIDS, with their small minds and wanton needs.  Not to mention how they rape women and children in the Congo and Darfur.\n\nAngelina Jolie, Bill Clinton, Bono and Bill/Melinda Gates can only do so much to help Africa.  The British/French/Dutch colonists should return to rule Africa again, and then there will be peace as before.  Or maybe there should be Chinese-style communist states in Africa.  Democracy cannot be exported, and will not work everywhere.  We, the human race, should always live in hope.
572441
Every day 400000 babies are born, 150000 people die for a net increase of 250000 human beings a day. So it is approximately 3 to 1 as you guessed.\n\nCurrently the worldpopulation increases with 90 million a year, or about 1.4%. We are crowding 6500 million people on the planet.
1084113
there is only one race...the human race\n\nthere is no biological basis for multiple "races" within the human race\n\nif it helps any, i'm a molecular geneticist\n\nthat doesn't make me right, it just means that i have some background relative to your question\n\none can find larger variation, genetically speaking, within an ethnos than found between two different ethnicities\n\nin other words you can take a group of white europeans or black africans...and not in all but in some cases (and it would be quite common), you could find greater genetic variation within the group of white europeans than by comparing both groups\n\nyou could do the same with the group of black africans or any other so-called race
821343
They are classified Caucasian by the scientific community so that would make them another type of white person.  There are a lot more than just the 3 races though and as people have become more intelligent we all realize there are many different types and colors of people in this world than use to be recognized by the scientific community.  With the mixing of so many different types of people there are  races we didn't even think about 20 years ago.  So, I guess your question really doesn't even matter in the grand scheme of things.