Vitamin E reduces the requirement of _________ .
Vitamin E reduces the requirement of _________ .
A. Iron
B. Zinc
C. Selenium
D. Magnesium
A. Iron
B. Zinc
C. Selenium
D. Magnesium
		A. Electrical Energy
B. Heat Energy
C. Light Energy
D. Chemical Energy
A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin K
		A. Echo
B. reverberation
C. resonance
D. None of these
SONAR stands for Sound Navigation and Ranging. SONAR works on the principle of reflection (echo) of sound waves from the object. It stands for Sound Navigation and Ranging.
		A. Flowers
B. Roots
C. Stem
D. Leaves
		A. SI
B. CGS
C. BTU
D. CNG