A. Sodium Carbonate
B. Bleaching powder
C. Potassium Permanganate
D. Chlorine
A. South Asia and Southeast Asia
B. South Asia and Southwest Asia
C. South Asia and Central Asia
D. South Asia and North Asia
A. Brazil
B. Argentina
C. Spain
D. Uruguay
A. June 1930
B. July 1931
C. July 1930
D. June 1933
A. Joe Biden
B. Mike Pence
C. Dick Cheney
D. Al Gore
A. Poland
B. Italy
C. Denmark
D. Sweden
A. Burning of a paper
B. Conversation of water into steam
C. Digestion of food
D. Burning of coal