4501: Swamps are seen in the Siberian rivers because
(a) Freezing of the river near the mouth prevents water to flow to the sea
(b) Rivers are too narrow
(c) Rivers are heavily drained by the large network of canals
(d) Railway bridges built across the rivers obstruct the flow
4502: Dry Farming in India is extensively practised in
(a) Kanara plains
(b) Deccan Region
(c) Coromandel plains
(d) Punjab plains
4503: In a fluorescent tube which of the following components are found?
(a) Mercury vapour
(b) Argon and carbon dioxide
(c) Helium and oxygen
(d) Argon and neon
4504: With reference to 'Indian Ocean Rim Association for Regional Cooperation (IOR-ARC)', consider the following statements:
1. It was established very recently in response to incidents of piracy and accidents of oil spills.
2. It is an alliance meant for maritime security only.
Which of the statements given above is / are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
4505: Consider the following:
1. Hotels and restaurants
2. Motor transport undertakings
3. Newspaper establishments
4. Private medical institutions
The employees of which of the above can have the 'Social Security' coverage under Employees' State Insurance Scheme?
(a) 1, 2 and 3 only
(b) 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4