Question
Which of the following is not a greenhouse
gas?Solution
Although nitrogen makes up about 78% of the Earth's atmosphere, it is not a greenhouse gas because it does not absorb or emit infrared radiation.
2,0, 9, 20, ‘?’, 714
Three series are given below. You have to find the values of P, Q and R, then establish a relationship among them.
I:Â Â 840, P , 584, 456, 5...
22, 23, 31, 57, 122, 247
5, 8, 17, ?, 37, 48
4 6 ? 31 119 601
...18, 32, 50, 82, 132, ?
6Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24Â Â Â Â Â Â Â Â Â Â Â 218Â Â Â Â Â Â Â Â Â 3486Â Â Â Â Â Â Â 43575
10      �...
12Â Â Â Â Â Â Â Â Â Â 8Â Â Â Â Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â Â Â Â Â 12Â Â Â Â Â Â Â Â Â Â 4.5Â Â Â Â Â Â Â Â Â 15
18      �...
30 27 20 9 ? - 25
23 48 98 198 ? 798
...