521: Ultrafiltering units of kidney are known as:
(a) Nephron
(b) Glomerulus
(c) Vena Cava
(d) Tubule
522: Find the missing term of the following series
DCXW, HGTS, ...... , POLK, TSHG
(a) KLOP
(b) LKOP
(c) KLPO
(d) LKPO
523: If water contracts on freezing, which of the following would happen?
(a) Icebergs will completely float on the surface of water
(b) Ice would become more dense
(c) Lakes would freeze from top to bottom
(d) Rocks will crack due to freezing or internal water
524: Which one of the following pairs is not correctly marched?
(a) Seikan Rail Tunnel : China
(b) Appalachian Trail : USA
(c) Petronas Towers : Malaysia
(d) Rogun Dam : Tajikistan
525: Consider the following pairs: National Park River flowing through the Park
1. Corbett National Park : Ganga
2. Kaziranga National Park : Manas
3. Silent Valley National Park : Kaveri
Which of the above pairs is/are correctly matched?
(a) 1 and 2
(b) 1 and 3
(c) 3 only
(d) None