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An atom with 6 protons and 6 neutrons will have mass number____
A) 12     
B) 6                       
C) 18     
D) 24


Oxygen has 6 electrons in its valance shell so its valiancy is_____
A) 6       
B) 2                       
C) 8       
D) 18


In plants Air pollution slows down the process of;
A)
Photosynthesis             
B) Respiration
C) Digestion                         
D) Circulation


What is correct about the particles of milk?
A) They are arranged in a regular manner
B) They only vibrate about their fixed position
C) They are far apart from one another
D) 
They are free to move but they move to short distance


The formula of pressure, P=______
A) F x A                               
B) F/A
C) A/F                                   
D) Fx D


Educational psychology is the branch of psychology which deals with teaching and learning and also covers the entire range and behavior of the personality is related to education.
A) John Locke    
B) Villiam James
C) John Dewey    
D) Skiner