text: ঘনত্ব:- পদাৰ্থৰ প্ৰতি একক আয়তনৰ ভৰক ঘনত্ব বুলি কোৱা হয়। কঠিন, তৰল আৰু গেছীয় পদাৰ্থৰ ঘনত্ব ক্ৰমে অধিক, কম আৰু অতি কম ।
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