401: First Five-Year Plan laid stress on:
(a) Agriculture
(b) Industry
(c) Power
(d) Uplifting of poor people
402: In the given figure, if QRS is an equilateral triangle and QTS is an isosceles triangle and x = 47°, then the value (in degrees) of y will be
(a) 13
(b) 23
(c) 33
(d) 43
403: Recently, our scientists have discovered a new and distinct species of banana plant which attains a height of about 11 metres and has orange-coloured fruit pulp. In which part of India has it been discovered?
(a) Andaman Islands
(b) Anaimalai Forests
(c) Maikala Hills
(d) Tropical rain forests of northeast
404: Consider the following statements :
AIDS is transmitted
I. by sexual intercourse.
II. by blood transfusion.
III. by mosquitoes and other blood sucking insects.
IV. across the placenta.
Of these statements
(a) I, II and III are correct
(b) I, II and IV are correct
(c) I, II and IV are correct
(d) I and III are correct
405: A radioactive substance has a half-life of four months. Three-fourth of the substance would decay in
(a) 3 months
(b) 4 months
(c) 8 months
(d) 12 months