691: Micro-elements needed to increase soil fertility are:
(a) Nitrogen, hydrogen and calcium
(b) Nitrogen, phosphorus and potassium
(c) Iron, calcium and potassium
(d) Manganese, copper and zinc
692: In the map given four areas are differently shaded, three of which indicate cereal production areas and one indicates non-cereal production areas and one indicates non-cereal production area. As per the index given, the non cereal crop production area is
(a) 1
(b) 2
(c) 3
(d) 4
693: Which of the following can be inferred from the statement that "Either John is stupid or John is lazy" ?
I. John is lazy / therefore, John is not stupid.
II. John is not lazy / therefore, John is stupid.
III. John is not stupid / therefore, John is lazy.
IV. John is stupid / therefore, John is not lazy.
Choose the correct answer from the codes given below :
Codes :
(a) I and II
(b) II and III
(c) III and IV
(d) I and IV
694: Rainfall on the east coast of Tamil Nadu occurs during October to November due to
(a) Winter monsoon
(b) Retreating south-west monsoon
(c) North-west monsoon
(d) Local winds
695: If X + 2Y = 2X + Y, then X2 / Y2 is equal to
(a) 0
(b) 1
(c) 2
(d) 4