161: The 2004 Tsunami made people realize that mangroves can serve as a reliable safety hedge against coastal calamities. How do mangroves function as a safety hedge?
(a) The mangrove swamps separate the human settlements from the sea by a wide zone in which people neither live nor venture out.
(b) The mangroves provide both food and medicines which people are in need of after any natural disaster.
(c) The mangrove trees are tall with dense canopies and serve as an excellent shelter during a cyclone or Tsunami.
(d) The mangrove trees do not get uprooted by storms and tides because of their extensive roots.
162: Which soil is best suited for paddy crop?
(a) Black soil
(b) Loamy soil
(c) Hard soil
(d) Red soil
163: In which of the following shapes can a 1 kg plastic sheet be moulded so as to have minimum surface area?
(a) Cylindrical
(b) Spherical
(c) Conical
(d) Cubical
164: Recently, the manuscripts of which one of the following have been included in the UNESCO's Memory of World Register?
(a) Abhidhamma Pitaka
(b) Ramayana
(c) Rig-Veda
(d) Mahabharta
165: Moderates and extremists of the Indian National Congress differed mainly on the issue of:
(a) Swaraj
(b) Swadeshi
(c) Boycott
(d) National education