401: 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
402: With reference to digital payments, consider the following statements:
1. BHIM app allows the user to transfer money to anyone with a UPI-enabled bank account.
2. While a chip-pin debit card has four factors of authentication, BHIM app has only two factors of authentication.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
403: Consider the following statements:
1. Salt-water crocodile is found in the Andaman and Nicobar Islands.
2. Shrew and Tapir are found in the Western Ghats of the Malabar region.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
404: Who among the following discovered heavy water?
(a) Joseph Priestley
(b) Heinrich Hertz
(c) H. C. Urey
(d) G. Mendel
405: Assertion (A):
Fatty acids should be apart of the balanced human diet.
Reason (R):
The cells of the human body cannot synthesize any fatty acids.
(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