what is repulsion? And how it works and discovered by whom?
my name i ayush translate in French?
how many things we get from watermelon?
which fly is most common for our life ? give reason for your answer.
how many blue whales are present on earth?
what are Ulka? is there this a star when not why not?
what is black hole?say 20 words on this or30
who is the maker of paisa and rupees?