سوال: By which process can we separate a mixture of naphthalene and chalk powder?
جواب: Sublimation
منبع: http://linkinghub.elsevier.com/retrieve/pii/0021961472900547
لینک مسابقه: http://www.tebyan.net/index.aspx?pid=31139&questionType=6
QUESTION : Which is the oldest city in the world ?
ANSWER : Damascus in Syria is known as the oldest city continuously inhabited on the earth
link of answer : http://wiki.answers.com/Q/What_is_the_oldest_city_in_the_world
:لینک شرکت در مسابقه
http://www.tebyan.net/index.aspx?pid=29855&questionType=5
جواب: Protein
منبع: http://encyclopedia2.thefreedictionary.com/kwashiorkor
لینک مسابقه: http://www.tebyan.net/index.aspx?pid=29855&questionType=5