MCQOPTIONS
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				| 1. | 
                                    Rocks break up when they are exposed on the earth's surface, mainly because | 
                            
| A. | Temperature changes effect them | 
| B. | Force of gravity acts on them | 
| C. | They and themselves in an environment different from that of their origin | 
| D. | Rocks gets decomposed when exposed to the atmosphere | 
| Answer» D. Rocks gets decomposed when exposed to the atmosphere | |