/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: tigisttesfaye908 https://cdn.slidesharecdn.com/profile-photo-tigisttesfaye908-48x48.jpg?cb=1646957897 shy(introvert) like to read and reasearch about scientific things very very interested in scientific things specially chemistry.