Pakistan’s largest city, Karachi, is home to more than 20 million people and has been in the news many times due to ...

E.M. Forster This is such a beautiful quote! 4. "The tree which moves some to tears of joy is in the eyes of others only a green thing which stands in the way. Some see nature all ridicule and ...

Natural products are small molecules produced naturally by any organism including primary and secondary metabolites. They include very small molecules, such as urea, and complex structures, such ...