521. What was the name of the Atom bomb dropped in Nagasaki known as?
'Fat man'
522. Who were the first Europeans to set up sea trade centres in India ?
The Portuguese
523. Which is the first newspaper of Kerala?
Rajyasamacharam' { June 1847 }
524. Which colloidal solution is used in photography?
Colloidal silver bromite
525. ….means officially lowering the value of currency in terms of foreign currencies?
Devaluation
526. Mahamastakabhisheka, a great religious event, is associated with and done for whom?
Bahubali
527. The scientific name of Rubber is?
Hevea brasiliensis
528. Which Indian State has the minimum total forest cover?
Haryana
529. Longest Railway Bridge?
Huey P. Long Bridge; 7009 m (Metairie; Louisiana; USA)
530. The United Nations declared 2014 as the International Year of which thing?
Crystallography