2201: The oldest Hindu epic is:
(a) Mahabhashya
(b) Ramayana
(c) Ashtadhyayi
(d) Mahabharata
2202: The average of X1, X2 and X3 is 14. Twice the sum of X2 and X3 is 30. What is the value of X1 ?
(a) 20
(b) 27
(c) 16
(d) 12
2203: When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and dies because
(a) Water from soil cannot rise to aerial parts
(b) Roots are starved of energy
(c) Tree is infected by soil microbes
(d) Roots do not receive oxygen for respiration
2204: With reference to the food chains in ecosystems, which of the following kinds of organism is / are known as decomposer organism / organisms?
1. Virus
2. Fungi
3. Bacteria
Select the correct answer using the codes given below.
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
2205: The Minimum Alternative Tax (MAT) was introduced in the Budget of the Government of India for the year
(a) 1991-92
(b) 1992-93
(c) 1995-96
(d) 1996-97