GS5. Which of the following is a greenhouse gas? University Of Sindh mcqs test

                                                                       

EXPLANATION

IQ1. Find the next number in the series: 2, 5, 12, 27, ___?

a) 58

b) 62

c) 68

d) 72

ANSWER: a) 58

EXPLANATION:

( 2 × 2 ) + 1 = 5. 

( 5 × 2 ) + 2 = 12. 

( 12 × 2 ) + 3 = 27.

( 27 × 2 ) + 4 = 58.