समुद्र तल की पूरी जानकारी पहले कम क्यों थी?
Why was complete knowledge of the ocean floor limited earlier?
Explanation opens after your attempt
A. गहरा समुद्र सीधे देखना और मापना कठिन थाDeep sea was difficult to observe and measure directly
Concept
It was difficult to reach and measure the deep sea. Exam tip: remember the role of modern instruments.
Why this answer is correct
The correct answer is A. गहरा समुद्र सीधे देखना और मापना कठिन था / Deep sea was difficult to observe and measure directly. It was difficult to reach and measure the deep sea. Exam tip: remember the role of modern instruments.
Exam Tip
गहरे समुद्र तक पहुँचना और माप लेना कठिन था। परीक्षा में आधुनिक उपकरणों की भूमिका याद रखें।
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