81: Match List I with List II and select the correct answer using the codes given below the lists :
List I-------------------List II
(Agricultural products)--(Foremost producer)
I. Cotton---------------(A) Madhya Pradesh
II. Gram-----------------(B) Gujarat
III. Black pepper---------(C) West Bengal
IV. Pineapple-------------(D) Kerala
Codes:
(a) I-B, II-A, III-D, IV-C
(b) I-B, II-A, III-C, IV-D
(c) I-A, II-B, III-D, IV-C
(d) I-A, II-B, III-C, IV-D
82: At which one of the following places do two important rivers of India originate, while one of them flows towards north and merges with another important river flowing towards Bay of Bengal, the other one flows towards Arabian Sea?
(a) Mahabaleshwar
(b) Badrinath
(c) Amarkantak
(d) Nasik
83: Which one of the following is a Vedanga?
(a) Sruti
(b) Smriti
(c) Nirukta
(d) Samhita
84: The Millennium Ecosystem Assessment describes the following major categories of ecosystem services-provisioning, supporting, regulating, preserving and cultural. Which one of the following is supporting service?
(a) Production of food and water
(b) Control of climate and disease
(c) Nutrient cycling and crop pollination
(d) Maintenance of diversity
85: Water hyacinth is related to:
(a) Lemna
(b) Pistia
(c) Eichhornia
(d) None of these