2991: With reference to food chains. In ecosystems, consider the following statements:
1. A food chain illustrates the order in which a chain of organisms feed upon each other.
2. Food chains are found within the populations of a species.
3. A food chain illustrates the numbers of each organism which are eaten by others.
Which of the statements given above is/are correct?
(a) 1 only
(b) 1 and 2 only
(c) 1, 2 and 3
(d) None
2992: Consider the following statements with reference to the Periodic Table of chemical elements :
I. lonisation potential gradually decreases along a period.
II. In a group of elements, electron affinity decreases as the atomic weight increases.
III. In a given period, electronegativity decreases as the atomic number increases.
Which of these statement(s) is/are correct ?
(a) I only
(b) II only
(c) I and III
(d) II and III
2993: The Indian National Congress agreed in 1947 to the partition of the country mainly because
(a) the principle of two-Nation theory was then acceptable to them
(b) it was imposed by the British Government and the Congress was helpless in this regard
(c) they wanted to avoid large-scale communal riots
(d) India would have otherwise lost the opportunity to attain freedom
2994: National Agriculture Insurance Scheme replacing Comprehensive Crop Insurance Scheme was introduced in the year
(a) 1997
(b) 1998
(c) 1999
(d) 2000
2995: 'Hand-in-Hand 2007', a joint anti-terrorism military training was held by the officers of the Indian Army and Officers of Army of which one of the following countries?
(a) Japan
(b) China
(c) Russia
(d) USA