4081: In the context of which of the following do some scientists suggest the use of cirrus cloud thinning technique and the injection of sulphate aerosol into stratosphere?
(a) Creating the artificial rains in some regions
(b) Reducing the frequency and intensity of tropical cyclones
(c) Reducing the adverse effects of solar wind on the Earth
(d) Reducing the global warming
4082: The non-permanent members of the Security Council of the UN elected by the General Assembly for a two years term at present include
(a) India, Austria, Ecuador, France
(b) Japan, India, Hungary, Venezuela
(c) Zimbabwe, Venezuela, India, France
(d) Morocco, Cape Verde, Belgium, Russia
4083: In the context of the organic evolution, the loss of limbs of snakes is explained by the phenomenon of
(a) use and disuse of organs
(b) adaptation to living in burrows
(c) natural selection
(d) inheritance of acquired characters
4084: Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I (Board) List-II (Headquarters)
A. Coffee Board 1. Bengaluru
B. Rubber Board 2. Guntur
C. Tea Board 3. Kottayam
D. Tobacco Board 4. Kolkata
(a) 1 3 4 2
(b) 2 4 3 1
(c) 2 3 4 1
(d) 1 4 3 2
4085: Triple Antigen does not immunise against:
(a) Diphtheria
(b) Tetanus
(c) Typhoid
(d) Whooping cough