1. Which one of the following salts contributes maximum to the salinity of sea water ?
(A) Calcium sulphate
(B) Magnesium sulphate
(C) Magnesium carbonate
(D) Sodium chloride
Answer: Sodium chloride'; return false;">See Answer:
2. Which one of the following longitudes along with the Prime Meridian forms a great circle on the globe?
(A) 0°
(B) 90°E
(C) 90°W
(D) 180°
Answer: 180°'; return false;"
(A) Calcium sulphate
(B) Magnesium sulphate
(C) Magnesium carbonate
(D) Sodium chloride
Answer: Sodium chloride'; return false;">See Answer:
2. Which one of the following longitudes along with the Prime Meridian forms a great circle on the globe?
(A) 0°
(B) 90°E
(C) 90°W
(D) 180°
Answer: 180°'; return false;"