Crude oil is generally found in
A. Igneous rocks
B. Sedimentary rocks
C. Metamorphic rocks
D. Sandy desert soils
Answer: Option B
A. Igneous rocks
B. Sedimentary rocks
C. Metamorphic rocks
D. Sandy desert soils
Answer: Option B
The years 1700, 1800 and 1900 were
A. Leap years
B. Not leap years
C. Famine years
D. Years of natural calamities
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