alleryমহাসাগৰীয় তৰংগসমূহৰ মাজৰ সৰ্বনিম্ন বিন্দুটোক কি শব্দৰে বুজোৱা হয়?
Aতৰংগ শীৰ্ষ
Bতৰংগ খাদ
Cতৰংগ বিস্তাৰ
Dতৰংগ কাল
Answer & Solution
Correct answer: B. তৰংগ খাদ
তৰংগ খাদ হ'ল দুটা ক্ৰমাগত তৰংগ শীৰ্ষৰ মাজত সৃষ্টি হোৱা আটাইতকৈ নিম্ন অৱনমিত অংশ।
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