Geography (oceanography সমুদ্রবিদ্যা)
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1) Which ocean has the fewest islands?
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2) Which ocean has the most islands?
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3) Which ocean has the weakest currents?
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4) Which ocean has the strongest currents?
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5) Which ocean has the lowest average wave height?
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6) Which ocean has the highest average wave height?
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7) Which ocean has the smallest tidal range?
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8) Which ocean has the largest tidal range?
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9) Which ocean has the largest coral reef?
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10) Which ocean is the least affected by pollution?
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11) Which ocean is the most affected by pollution?
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12) Which ocean is the least busy for shipping?
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13) Which ocean is the busiest for shipping?
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14) Which ocean is the least biodiverse?
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15) Which ocean is the most biodiverse?
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16) Which ocean is the most explored?
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17) Which ocean is the least explored?
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18) Which ocean is the deepest?
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19) Which ocean is the shallowest?
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20) Which ocean is the least salty?
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21) Which ocean is the saltiest?
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22) Which ocean is the coldest?
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23) Which ocean is the warmest?
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24) Which ocean is the smallest in the world?
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25) Which ocean is the largest in the world?
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