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Q21. Baking soda is also is known as-
(A) Sodium Bicarbonate
(B) Calcium Bicarbonate
(C) Carbon Monoxide
(D) Bromide
Answer: Sodium Bicarbonate
Q22. Which gland is both exocrine and endocrine?
(A) Pituitary gland
(B) Thyroid gland
(C) Pancreas
(D) Small intestine
Answer: Pancreas
Q23. Which soil is best suited for cotton?
(A) Red soil
(B) Regur
(C) Alluvial soil
(D) Loam
Answer: Regur
Q24. Which state has the largest waste land area?
(A) West Bengal
(B) Bihar
(C) Rajasthan
(D) Punjab
Answer: Rajasthan
Q25. Colour of the Urine is yellow because of-
(A) Urochrome
(B) Potassium
(C) Endorphin
(D) Insulin
Answer: Urochrome