Contents

Science is originated from a Latin word Scienta, which means to……….
a) know  
b) act               
c) teach                
d) behave

a

Scientific knowledge is obtained by observations and……….
a) principles                 
b) experiments
c) checking                  
d) none of these

b

When the World Health Organization (WHO) started a worldwide campaign to eradicate smallpox?
a) 1967                        
b) 1977
c) 1987                        
d) 1997

a

When and where the last case of smallpox occurred?
a) 1970, Seri Lanka      
b) 1973, Indonesia
c) 1977, Somalia          
d) none of these

c

When World Health Assembly declared the world free of smallpox?
a) May 8, 1980            
b) June 12, 1982
c) July 7, 1983             
d) Jan 22, 1995

a

……….is the only disease that has been completely wiped out throughout the world.
NTS PST (B) -------2021
a) Smallpox                 
b) Chicken pox
c) Measles                   
d) Cholera

a