2081: Other than poaching, what are the possible reasons for the decline in the population of Ganges River Dolphins?
1. Construction of dams and barrages on rivers.
2. Increase in the population of crocodiles in rivers.
3. Getting trapped in fishing nets accidentally.
4. Use of synthetic fertilizers and other agricultural chemicals in crop-fields in the vicinity of rivers.
Select the correct answer using the code given below :
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
2082: Antigen is a substance which
(a) lowers body temperature
(b) destroys harmful bacteria
(c) triggers the immune system
(d) is used as an antidote to poison
2083: "Economic Justice", as one of the objectives of the Indian Constitution, has been provided in the:
(a) Preamble and Fundamental Rights
(b) Preamble and Directive Principles
(c) Fundamental Rights and Directive Principles
(d) Preamble, Fundamental Rights and Directive Principles
2084: The All India Muslim League was formed in 1906 at
(a) Aligarh
(b) Dhaka
(c) Delhi
(d) Karachi
2085: Karl Marx explained the process of class struggle with the help of which one of the following theories?
(a) Dialectical materialism
(b) Empirical liberalism
(c) Existentialism
(d) Darwin's theory of evolution