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                  SWIMMING   WAS INCLUDED    in  the  first   modern  Olympic  games  in  1896   and  diving  events  were  added  in 1904.Swimming  is   both an  individual   and  a  team  sport  and  races  takes  place  over a  predetermined     distance in  one of  the  four   major  categories of  stroke -free style,butterfly,breaststroke,and  backstroke. Competition  pools  are clearly  marked  for  racing  and  anti  turbulence  lane  lines  are  used   to  separate  the  swimmers and  help  keep  the   water  calm.The  first  team  or   individual  to  finish the  race  is  the  winner.       Competitive  diving  is  divided  into   men's  and women's  spring-board  and  platform (high board) events.There  are six  official  groups   of  dives-forward dive,backward dive,arm stand dive,twist dive,reverse dive,and  inward  dives.competitors   performs   a  set  numbers of  dives  and  after  each  one  a  panel  of  judges  awards  

BLOOD      IS    RED    ,because     all  its   cells are  packed   called   with  a  red-colored   substance  called       hemoglobin.Using  this,  the   red  blood cells  pickup   vital    oxygen  and  deliver  it  to  the  body's  cells.To   achieve  this  and  the  other   roles,  such  as  removing  waste,  blood is  pumped  along   blood  vessels  by  the  heart. BLOOD       COMPOSITION -  IF     Blood   is  poured  into  a  glass tube  and   spun  in  a  centrifuge     ,its  main  components  separate    into  three  layers- PLASMA -   A   watery  liquid   containing  food ,   waste, harmonies  and  many  other  substance. WHITE   BLOOD  CELLS   AND  PLATELETS White  blood   cells   fight infection   and   platelets  prevent  bleeding   by  causing  blood  clots. RED  BLOOD  CELLS .-These    transport  oxygen  from  lungs  to  tissues. BLOOD     VESSELS -There  are  three  types  of  blood  vessels   namely- Arteries -it  carry  oxygen  rich  blood  fro

ACRYLICS   PAINT   IS  MADE  BY  MIXING  PIGMENTS with  a   synthetic   resin  .It  can  be  thinned  wi t h  wate r    but  dries   to  become  water  insol u bl e.Acrylic s   are  applied  to  many  surfaces  ,such  as  paper  and  acrylic -primed  board   and  canvas.A  variety  of  brushes ,painting knives  , rollers,ai r  b rushes,plastic scrapers  are  used  in   Acrylic  painting.The  v ersatility   of  Acrylics  make  them   suitable   for  a  wide   ran  of  techniques   .They  can   be   used   op a qu ely  or  by  adding  water-  in  a  transparent , watercolor  style.Acry lic   medium s  can    be  added to  the  paint  to   adjust  its  cons istency  for  spec ial  effects     such a   small glazing  and  impasto  (ridges  of  paint   applied  in  thick  stroke s) or  to  make  it  more  matt or  glossy.Acrylics  are   quick  -drying ,  which  allow  lay ers     of  paint    to  be  applied  on  top  of   each other  almost  immediately. PASTE LS - PASTELS   A

A hazmat suit is a piece of personal protective equipment that consists of an impermeable whole-body garment worn as protection against hazardous materials. Such suits are often combined with self-contained breathing apparatus to ensure a supply of breathable air. Hazmat suits are used by  firefighters  ,paramedics  researchers, personnel responding to toxic spills, specialists cleaning up contaminated facilities, and workers in toxic environments. Hazmat suits are barrier formed of plastic, fabric and rubber, along with an independent source of oxygen. They protect workers by separating them from their hazardous environment. Simpler suits can be  (adsbygoogle = window.adsbygoogle || []).push({});   to protect against harmful liquids, but more advanced suits can become completely airtight to defend against airborne contaminants and toxic chemicals. This versatility has meant that hazmat suits can be used by the military, in industry and by healthcare workers.

IN  1998,THE  FIRST  component  of   the  International  space   station  (ISS)  were  launched  from  Russia  and   the  US.The  ISS  will  provide   a  unique  place  to  study    the  Earth  ,  and  to  see   ,how  the  sun;s violent   eruptions    affect  the   operation  of  the communications   satellites  ,  and  the weather  on  the   Earth .The  effect  of  gravity    inside  the  station    will  be   minuscule   and  scientists   will   be able     to  study  a  myriad  of  subtle    biological  ,physical,  and  chemical  reactions ,  which  are  impossible  to   duplicate   on  Earth.Complete   construction  will  require   a  total   of  45  space  missions    many hours  of space  walking     by  astronauts .The  station  is  scheduled   to   be  permanently   crewed  from   the  eighth  misssion  onwards.Astronauts    will  spend  many  months  at a  time    on  the  station , testing  equipments   for  future  space    exploration  missions . SLEEP  IN 

The   Urogenital  system  mainly  related  to two  types  of functions.One  is related  to  the  kidneys that maintain  the  volume and  composition   of  body fluids   within   very  narrow  limits.Second  is related  to   the sex organs that facilitates  reproduction.Kidneys  help  in maintaining   the body's  internal   environment   in  physiological   state.A  healthy  kidney performs  regulation  of  water   in  the body, maintains normal acid  /base equilibrium,eliminates metabolic waste products  and also  maintains  the retention  of  vital  substances.The   is why  the kidney  receives   the  one  quarter  of the  cardiac   output  which  is  about  1.3 liters per minute.Eventually,only   about  1 percent of the  original volume  is passed   down  the ureter  to  the bladder  reservoir  for discharge.The  kidney filter 180 quarter of blood   daily.1/4  of all the blood  in human  body is filtered   by the kidney every minute.The yellow  colour  of the uri

Papua New Guinea, certainly one of the last great areas of land on Earth to remain partially unexplored; this remarkable remote landscape still remains a place of great wonder and deep mystery.   Exotic birds, plant life and rare animals, unique extraordinary art and languages and colorful warriors  are marvelous. The island of New Guinea was named after the country of Guinea in Africa.   Papua New Guinea consists of the eastern half of the island of New Guinea – the islands of New Britain, New Ireland, Bougainville and around six hundred smaller islands, north of Australia.New Guinea is one of the largest islands in the world.   The Kuk Early Agricultural Site, inscribed on the World Heritage List in 2008, consists of swamps in the highlands of New Guinea. It has been discovered that the land has been drained, possibly for as long as ten thousand years. Evidence of agriculture dates back to six and a half thousand years ago.  Papua New Guinea is one of,  the most,