1536: Seismic waves that vibrate perpendicular to the direction of their path:
(a) Travel through the solid parts of the earth only
(b) Travel through the solid as well as other parts of the earth
(c) Spread on the surface of the earth
(d) None of the above
1537: Recently, a series of uprisings of people referred to as `Arab Spring originally started from
(a) Egypt
(b) Lebanon
(c) Syria
(d) Tunisia
1538: Which of the following National Parks is unique in being a swamp with floating vegetation that supports a rich biodiversity?
(a) Bhitarkanika National Park
(b) Keibul Lamjao National Park
(c) Keoladeo Ghana National Park
(d) Sultanpur National Park
1539: Which of the following has/have shrunk immensely/dried up in the recent past due to human activities ?
1. Aral Sea
2. Black Sea
3. Lake Baikal
Select the correct answer using the code given below :
(a) 1 only
(b) 2 and 3
(c) 2 only
(d) I and 3
1540: When a bill is referred to a joint sitting of both the Houses of the Parliament, it has to be passed by
(a) a simple majority of members present and voting
(b) three-fourths majority of members present and voting
(c) two-thirds majority of the Houses
(d) absolute majority of the Houses