661. “Etymology” is the study of origin and history of words.
662. Famous painting School of Athens painted by Raphael.
663. Becquerel is a unit of radioactivity.
664. Neutron was discovered by Chadwick
665. First human in space is Yuri Gagarin 1961 of USSR
667. First man to set foot on five continents is Captain Cook
668. Herodotus is called Father of History
669. What is the most abundant element in the universe? Hydrogen
670. Study of coins and medals is called Numismatics
671. Study of skin is called Dermatology
672. Study of insects is called Entomology
673. Study of earthquakes is called Seismology
674. Study of poisons is called Toxicology
675. Parliament of Iraq is National Assembly.
676. Parliament of Morocco is Majlis al Nuwab.
677. The largest producer of solar energy in the world is USA
678. Corona is the outer most part of the Sun.
679. Le Harve Seaport is in France.
680. Messina strait separates Italy from Sicily.