2781: Protective action against harmful household insects and pests can be taken by the use of
(a) Infrasonic waves
(b) Microwaves
(c) Ultrasonic waves
(d) Low frequency radio waves
2782: Which important event immediately preceded Jallianwala Bagh massacre?
(a) Rowlatt Act enactment
(b) Communal award
(c) Coming of Simon Commission
(d) Quit India Movement
2783: Which one of the following parts of human brain is the regulating centre for swallowing and vomiting?
(a) Pons
(b) Medulla oblongata
(c) Cerebrum
(d) Cerebellum
2784: Bishop Carlos Felipe Ximenes Belo and Jose Ramos-Horta who shared the 1996 Nobel Peace Prize are known for their work for the cause of
(a) East Timor
(b) Guatemala
(c) Bosnia
(d) Barunda
2785: Economic growth is with usually coupled with
(a) Deflation
(b) Inflation
(c) Hyperinflation
(d) Stagflation