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426. Given below are two statements, labeled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : Uncooked potatoes are not digested by human beings.Reason (R) : Starch granules in uncooked potatoes are coated with cellulose.
A. Both A and R are true but 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:
427. Azolla gives a good biofertilizer when mixed with
A. urea
B. cow dung
C. bone meal
D. blue green algae
Explanation:
428. Given below are two statements, labeled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ? 1. Assertion (A) : Mitochondria is called the power house of the cell. 2. Reason (R) : Mitochondria contains ATP.
A. Both A and R are true but 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:
429. The high yielding varieties of crops possess Which of the following characters responsible for green revolution ? 1. Ability to trap more solar energy 2. Ability to utilise more nutrients 3. High harvest index 4. Ability to use less water
A. 1 and 3
B. 1, 2 and 3
C. 2 and 3
D. 1, 2 and 3
Explanation:
430. Which of the following features distinguish musical sounds from noise ? 1. Regularity in sound 2. A musical sound has a single frequency 3. Absence of sudden changes of amplitude in respect of musical sounds
A. 1 and 2
B. 2 and 3
C. 1 and 3
D. 1, 2 and 3
Explanation:
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