66: Neap tides are produced in the first and third quarters of the Moon. Then,
(a) The Moon and the Sun are in conjunction with the other planets
(b) The Moon and the Sun are in opposition with each other
(c) The attractions of the Sun and the Moon are at right angles to each other
(d) The Moon and the Sun are in quadrant position to each other
67: What is the system of governance in the Panchayati Raj setup ?
(a) Single-tier structure of local self-government at the village level
(b) Two-tier system of local self-government at the village and block levels
(c) Three-tier structure of local self-government, at the village, block and district levels
(d) Four-tier system of local self-government at the village, block, district and state levels
68: Which one of the following countries is not a member of the Commonwealth of Independence States (CIS) ?
(a) Estonia
(b) Armenia
(c) Georgia
(d) Belarus
69: Protective action against harmful household insects and pests can be taken by the use of
(a) Infrasonic waves
(b) Microwaves
(c) Ultrasonic waves
(d) Low frequency radio waves
70: A ship sailing from the eastern extremity of the Aleutian Islands to Dutch harbour crosses 180° meridian at 23.30 hrs on January 1, 1999. What time and date will be recorded by the captain of the ship in his diary after one-hour journey from the point of crossing of the meridian ?
(a) January 1, 0030 hrs
(b) January 2, 0030 hrs
(c) January 3, 0030 hrs
(d) January 4, 0030 hrs