1431: The trees of spruce, fir, pine, etc. are found in which of the following natural regions of the earth?
(a) Laurentian type
(b) Alpine type
(c) Taiga type
(d) Siberian type
1432: In a meeting, the map of a village was placed in such a manner that south-east becomes north, north-east becomes west and so on. What will south become ?
(A) North-east
(B) North
(C) North-west
(D) West
1433: Assertion (A):
In the periodic table of chemical elements, electron affinity is always found to increase from top to bottom in a group.
Reason (R):
In a group, the atomic radial generally increase from top to bottom.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
1434: Assertion (A)
In our houses, the current in AC electricity line changes direction 60 times per second.
Reason (R):
The frequency of alternating voltage supplied is 60 hertz.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
1435: What was the important reason for the fall of Vijayanagar Empire?
(a) Unity among the Muslim rulers
(b) Internal instability and weakness of Princes
(c) Moplah's rebellion
(d) Economic bankruptcy