4596: Most of the desert plants bloom during night time because
(a) their blooming is controlled by low temperature
(b) they are sensitive to the phases of moon
(c) the desert insects eat away flowers during day time
(d) the desert insects are active during night time
4597: One consistent feature found in the history of southern India was the growth of small regional kingdoms rather than large empires because of
(a) the absence of minerals like iron
(b) too many divisions in the social structure
(c) the absence of vast areas of fertile land
(d) the scarcity of manpower
4598: Water is filled in a container in such a manner that its volume doubles after every five minutes. If takes 30 minutes for the container to be full, in how much time will it be one-fourth full ?
(a) 7 minutes and 30 seconds
(b) 10 minutes
(c) 20 minutes
(d) 25 minutes
4599: Assertion (A): Amoeba reproduces by fission.
Reason (R): All unicellular organisms reproduce by asexual methods.
(a) Both A and R are individually true and R is the correct explanation of A.
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false.
(d) A is false but R is true.
4600: Consider the following companies:
1. Voltas
2. Titan Industries
3. Rallis India
4. Indian Hotels
Which of the above companies are in the Tata Group of Industries?
(a) 1 and 2
(b) 2, 3 and 4
(c) 1, 3 and 4
(d) 1, 2, 3 and 4