1596: A pesticide which is a chlorinated hydrocarbon is sprayed on a food crop. The food chain is: Food crop - Rat - Snake - Hawk. In this food chain, the highest concentration of the pesticide would accumulate in which one of the following?
(a) Hawk
(b) Food crop
(c) Snake
(d) Rat
1597: In which one of the following kinds of organisms is the phenomenon found wherein the female kills the male after copulation?
(a) Spider
(b) Honeybee
(c) Dragonfly
(d) Pit viper
1598: First non-Congress government to come in power in any Indian State is:
(a) DMK in Tamil Nadu
(b) Communist Party of India in Kerala
(c) CPI (M) in West Bengal
(d) None of the above
1599: Consider the following statements about Jawaharlal Nehru :
I. He was the President of the Congress Party in 1947.
II. He presided over the Constituent Assembly.
III. He formed the first Congress Ministry in United Province before India's independence.
Of these statements
(a) I, II and III are correct
(b) I and III are correct
(c) I and II are correct
(d) None is correct
1600: With reference to the scientific progress of ancient India, which of the statements given below are correct?
1. Different kinds of specialized surgical instruments were in common use by 1st century AD.
2. Transplant of internal organs in the human body had begun by the beginning of 3rd century AD.
3. The concept of sine of an angle was known in 5th century AD.
4. The concept of cyclic quadrilaterals was known in 7th century AD.
Select the correct answer using the codes given below :
(a) 1 and 2 only
(b) 3 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4