The most abundant element in the universe is:
A. Oxygen
B. Hydrogen
C. Carbon Dioxide
D. Silicon
A. Oxygen
B. Hydrogen
C. Carbon Dioxide
D. Silicon
A. Oxygen
B. Hydrogen
C. Carbon Dioxide
D. Silicon
A. 5,000 to 10,000
B. 10,000 to 15,000
C. 15,000 to 20,000
D. 20,000 to 25,000
A. night blindness
B. rickets
C. scurvy
D. hair fall
A. motor
B. generator
C. moving-coil meter
D. Battery