426: Arrange the following Buddhist councils in a chronological order:
(1) Vaishali
(2) Rajagraha
(3) Patliputra
(4) Sreenagar
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(a) 1, 4, 3, 2
(b) 3, 2, 1, 4
(c) 4, 1, 2, 3
(d) 2, 1, 3, 4
427: When a person moves from poles to the equator, the population of plants and animals will:
(a) Increase
(b) Decrease
(c) Remain unchanged
(d) Not show any consistent behaviour
428: In the year 2001, NASA launched a spacecraft to Mars named
(a) Mars Climate Orbiter
(b) Mars Global Surveyor
(c) Mars Odyssey
(d) Mars Polar Ladder
429: A suitable site of a cement plant requires proximity to:
(a) Coal and iron
(b) Limestone and manganese
(c) Limestone and gypsum
(d) Coal and gypsum
430: The following table shows the percentage change in the consumption of electricity by five towns P, Q, R, S, T from 1986 to 1988 :
If town T consumed 500,000 units in 1986, how much did it consume in 1988 ?
(a) 371,000 units
(b) 531,100 units
(c) 551,100 units
(d) 571,100 units