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General Science - Questions and Answers

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496. Which of the following groups contains only natural fuels
A. Petrol, diesel, natural gas
B. Petroleum, wood, coke
C. Coal, charcoal, wood
D. Coal, wood, petroleum
Explanation:
497. The number of ribs in human body is
A. 12
B. 18
C. 20
D. 24
Explanation:
498. Which of the following diseases usually spreads through air ?
A. Plague
B. Typhoid
C. Tuberculosis
D. Cholera
Explanation:
499. Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : A gas thermometer is more sensitive thana liquid thermometer.Reason (R) : Gases can be heated to high temperatures whereas liquids vaporise at a particular temperature.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Explanation:
500. Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : Bats can fly in the dark.Reason (R) : Bats navigate using sound waves.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Explanation:
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