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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
It depends on however wide you can make its base. A good base is usually twice as wide as the berm's height. You may want to go wider if you plan on mowing the berm's grass and don't desire flipping the lawn tractor or struggling to keep the push-mower from sliding off its line.
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