CoachA sedimentary layer, or stratum (plural strata), is a sheet of sediment, or of the rock it became, laid down at one time. It has a base and a top, and it differs from the layers above and below it in the size of its grains or in what it is made of.
বইগুলো এখনো বাংলা ভাষায় পাওয়া যায় না — ইংরেজি সংস্করণ দেখানো হচ্ছে।
Earth and Space Sciences · পরিভাষা
Sedimentary layer কী?
অন্য নাম: stratum