Nachi Nachi Gem to... | Who is better? Girls

Gem - dibromide is

Ram said ,"This girl is the wife of the wife of the grandson of thye my mother". Who is Ram to the girl?

Who is the author of the book 'A Better India: A Better World'?

Arun said, "This girl is the wife of the grandson of my mother". Who is Arun to the girl ?

In criticism of guilford's theory who said that it is better to call his theory classification of taxonomy instead of theory?