1021. How many colors does sunlight have?
A: 3
B: 5
C: 6
D: 7
1022. Who first of all determined the orbits of Moon, planets, and the sun?
A: Copernicus
B: Newton
C: Ptolemy
D: None of the above
1023. Soda water is carbonated by adding which of the following?
A: HCL
B: H2O
C: CO2
D: C2H4
1024. _ is the most abundant element in the universe.
A: Oxygen
B: Nitrogen
C: Carbon
D: Hydrogen
1025. Who invented the Safety Pin?
A: Donald Rose
B: Funk
C: Walter Hunt
D: Spencer
1026. Study of old age is known as?
A: Epistemology
B: Gerontology
C: Geology
D: Dermatology
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