Maharashtra State PSC 2013 Solved Paper

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Question : 33 of 100
 
Marks: +1, -0
Following are some theories of climate change given by scientists : 
(a) Sir George Simpson theory.
(b) Theory based on the sunspot cycle.
(c) Astronomical theory.  
(d) Variation in the quantities of radiation absorbed by atmospheric gases selectively.
In which theory of climate change, the five principle effects are considered and a mathematical model for expansion and contractions of ice sheets has been given?
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