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General Science - Questions and Answers

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1886. Magnesium is essential for plants as its helps in
A. flowering
B. root development
C. fruit ripening
D. chlorophyll formation
Explanation:
1887. The tape of a taperecorder is coated with
A. Zinc oxide
B. Copper sulphate
C. Mica
D. Ferromagnetic powder
Explanation:
1888. Which of the following animals is called a living fossil ?
A. Polystomella
B. Peripatus
C. Sea cucumber
D. Sacculina
Explanation:
1889. A chronometer miasures
A. sound waves
B. time
C. water waves
D. colour contarast
Explanation:
1890. Which of the following is the correct sequence of crop rotation with a view to increase soil fertility ?
A. Potato, Wheat, Pea, Barley
B. Wheat, Potato, Barley, Pea
C. Pea, Barley, Wheat, Potato
D. Barley, Pea, Wheat, Potato
Explanation:
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