3936: Consider the following:
1. Oxides of Hydrogen
2. Oxides of Nitrogen
3. Oxides of Sulphur
Which of the above causes/cause acid rain ?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
3937: The sex of the offspring is determined, when:
(a) The conception takes place
(b) The sperm fertilises the ovum
(c) The embryo is partially developed
(d) The end of gestation period is near
3938: Which one of the following statements is not correct?
(a) Rourkela Steel Plant, the first integrated steel plant in the Public sector of India was set up with the Soviet Union collaboration.
(b) Salem Steel Plant is a premier producer of stainless steel in India.
(c) Maharashtra Eletrosmelt Ltd is a subsidiary of the Steel Authority of India Ltd.
(d) Visakhapatnam Steel Plant is a unit of the Rashtriya Ispat Nigam Ltd.
3939: From the balance sheet of a company, it is possible to
(a) judge the extent of profitability of the company
(b) assess the profitability and size of the company
(c) determine the size and composition of the assets and liabilities of the company
(d) determine the market share, debts and assets of the company
3940: The half-life of a radio active element is 5 years. The fraction of the radioactive substance that remains after 20 years is
(a) 1/2
(b) 1/4
(c) 1/8
(d) 1/16