36: Lichens, which are capable of initiating ecological succession even on a bare rock, are actually a symbiotic association of
(a) algae and bacteria
(b) algae and fungi
(c) bacteria and fungi
(d) fungi and mosses
37: Which one of the the following usages was a post-Vedic development ?
(a) Dharma -- Artha -- Kama -- Moksha
(b) Brahmana -- Kshatriya -- Vaishya -- Shudra
(c) Brahmacharya -- Grihastashrama -- Vanaprastha -- Sanyasa
(d) Indra -- Surya -- Rudra -- Marut
38: Which one of the following pairs is not correctly matched ?
(a) T. S. Krishnamurthy : Former Chief Election Commissioner of India
(b) K. C. Pant : Chairman, Tenth Finance Commission of India
(c) A. M. Khusro : Former Chairman, Union Public Service Commission
(d) R. C. Lahoti : Former Chief Justice of India
39: Higher plants take up Nitrogen as:
(a) Nitrites only
(b) Nitrates only
(c) Nitrates and ammonia
(d) Urea
40: "Reserprine" derived from the plant "Serpentina" is used to:
(a) Alleviate pains
(b) Alleviate high blood pressure
(c) Alleviate low blood pressure
(d) Cure rickets