1671: A man takes 6 km distance to go round a rectangular area. If the area of the rectangle is 2 km, find the difference between length and breadth
(a) 1 km
(b) 0.5 km
(c) 2 km
(d) 0.75 km
1672: The most important strategy for the conservation of biodiversity together with traditional human life is the establishment of
(a) biosphere reserves
(b) botanical gardens
(c) national parks
(d) wildlife sanctuaries
1673: In which of the following activities are Indian Remote Sensing (IRS) satellites used?
1. Assessment of crop productivity
2. Locating groundwater resources
3. Mineral exploration
4. Telecommunications
5. Traffic studies
Select the correct answer using the code given below.
(a) 1, 2 and 3 only
(b) 4 and 5 only
(c) 1 and 2 only
(d) 1, 2, 3, 4 and 5
1674: In 1921 the Session of the Indian National Congress was held when its President was in prison and with some other leader acting as President. Who was the Congress President in prison?
(a) Mahatma Gandhi
(b) Mohammad Ali
(c) C. R. Das
(d) Abul Kalam Azad
1675: In how many different ways can four books A, B, C and D be arranged one above another in a vertical order such that the books A and B are never in continuous position?
(a) 9
(b) 12
(c) 18
(d) 14