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গড় সৌরদিনকে সেকেণ্ডে প্রকাশ করাে। |
| Answer» PLSS mark brilliantExplanation:Answer: mean solar day. A measure of time REPRESENTING the interval between consecutive passages of the Sun across the MERIDIAN, AVERAGED over one year. 1 day = 24 hr (86,400 sec) | |