SONAR এর সাহায্যে কীভাবে সমুদ্রের গভীরতা নির্ণয় করা হয়
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Sonar uses sound waves to 'see' in the water.
Sonar, short for Sound Navigation and Ranging, is helpful for exploring and mapping the ocean because sound waves travel farther in the water than do radar and light waves..
My Bengali is not good even though I am a Bengali..
Sry..
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Answer:যবনোসুগনষকসলমভস
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