4181: Consider the following statements about the megacities of India :
I. Population of each megacity is more than 5 million.
II. All the megacities are important sea ports.
III. Megacities are either national or State capitals.
Which of these statements are correct ?
(a) I, II and III
(b) I and II
(c) II and III
(d) I and III
4182: Consider the following pictures of a dice :
What is the number opposite of 3 ?
(a) 1
(b) 4
(c) 5
(d) Data insufficient
4183: Ultrafiltering units of kidney are known as:
(a) Nephron
(b) Glomerulus
(c) Vena Cava
(d) Tubule
4184: Elephant Pass, which is frequently in the news, is mentioned in the context of the affairs of which one of the following?
(a) Nepal
(b) India
(c) Sri Lanka
(d) Bangladesh
4185: Virtual water trade is being looked at by experts as a solution the world's water crisis. What does virtual water (VW) imply?
(a) Volume of heavy water required to replace ordinary water.
(b) Volume of water required to produce a commodity or service.
(c) Volume of water saved by using rainwater harvesting
(d) Volume of water utilized by an effective flood control.