4561: Six roads lead to a country. They may be indicated by letters X, Y, Z and digits 1, 2, 3. When there is storm, Y is blocked. When there are floods X, 1 and 2 will be affected. When road 1 is blocked, Z also is blocked. At a time when there are Hoods and a storm also blows, which road(s) can be used ?
(a) Z and 2
(b) Only Z
(c) Only 3
(d) Only Y
4562: With reference to river Teesta, consider the following statements:

1. The source of river Teesta is the same as that of Brahmaputra but it flows through Sikkim.
2. River Rangeet originates in Sikkim and it is a tributary of river Teesta.
3. River Teesta flows into Bay of Bengal on the border of India and Bangladesh.

Which of the statements given above is/are correct?

(a) 1 and 3 only
(b) 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
4563: Where are Tapovan and Vishnugarh Hydroelectric Projects located?

(a) Uttar Pradesh

(b) Madhya Pradesh

(c) Uttarakhand

(d) Rajasthan
4564: Neolithic period of age is not characterised by:

(a) Agriculture

(b) Use of copper

(c) Domestication of animals

(d) Fishing
4565: Which of the following has/have occurred in India after its liberalization of economic policies in 1991?

1. Share of agriculture in GDP increased enormously.
2. Share of Indias exports in world trade increased.
3. FDI inflows increased.
4. Indias foreign exchange reserves increased enormously.

Select the correct answer using the codes given below :

(a) 1 and 4 only
(b) 2, 3 and 4 only
(c) 2 and 3 only
(d) 1, 2, 3 and 4