4191: A question paper had ten questions. Each question could only be answered as True (T) or False (F). Each candidate answered all the questions. Yet, no two candidates wrote the answers in an identical sequence. How many different sequences of answers are possible?
(A) 1024
(B) 20
(C) 40
(D) 512
4192: The common ore of aluminium is:
(a) Bauxite
(b) Chromite
(c) Cryolite
(d) Monazite
4193: What is/are the importance of the 'United Nations Convention to Combat Desertification'?
1. It aims to promote effective action through innovative national programs and supportive inter-national partnerships.
2. It has a special/particular focus on South Asia and North Africa regions, and its Secretariat facilitates the allocation of major portion of financial resources to these regions.
3. It is committed to bottom-up approach, encouraging the participation of local people in combating the desertification.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
4194: The process of light exposure in a 24-hour cycle that controls the growth and development of certain plants and animals is called:
(a) Photosynthesis
(b) Photoionisation
(c) Photoperiodism
(d) Photoluminescence
4195: For artificial insemination the semen of a bull should be stored in:
(a) Cold water
(b) Ice
(c) Liquid nitrogen
(d) Liquid oxygen