2996: The average of X1, X2 and X3 is 14. Twice the sum of X2 and X3 is 30. What is the value of X1 ?
(a) 20
(b) 27
(c) 16
(d) 12
2997: The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs
(a) the water vapour of the air and retains its heat
(b) the ultraviolet part of the solar radiation
(c) all the solar radiations
(d) the infrared part of the solar radiation
2998: With reference to the International Union for Conservation of Nature and Natural Resources (IUCN) and the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), which of the following statements is/are correct?
1. IUCN is an organ of the United Nations and CITES is an international agreement between governments.
2. IUCN runs thousands of field projects around the world to better manage natural environments.
3. CITES is legally binding on the States that have joined it, but this Convention does not take the place of national laws.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
2999: Arrange the following in chronological order:
I. Home Rule League
II. Swadeshi Movement
III. Bardoli Movement
IV. Round Table Conference
(a) I, II, III, IV
(b) II, I, III, IV
(c) III, I, IV, II
(d) IV, II, I, III
3000: Which of the following characterizes/characterize the people of Indus Valley Civilization?
1. They possessed great palaces and temples.
2. They worshiped both male and female deities.
3. They employed horse-drawn chariots in warfare.
Select the correct statement/statements using the codes given below.
(a) 2 only
(b) 1 and 2 only
(c) 1, 2 and 3
(d) None is correct