MCQOPTIONS
 Saved Bookmarks
				| 1. | 
                                    Which of the following statements is / are correct about Troposphere | 
                            
| A. | The depth of this layer varies from about 8 to 16 kilometers | 
| B. | Greatest depths occur at the tropics where warm temperatures causes vertical expansion of the lower atmosphere | 
| C. | From the tropics to the Earth polar regions the troposphere becomes gradually thiner | 
| D. | All of the above | 
| Answer» E. | |