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Explanation:
Thuỷ sản nước ta thường được nuôi tại " ao hồ "
I'm assuming you mean topographic maps, in that case C. Elevation
Liquid water cannot persist at the moon's surface, and water vapor is decomposed by sunlight, with hydrogen quickly lost to outer space. However, scientists have since the 1960s conjectured that water ice could survive in cold, permanently shadowed craters at the Moon's poles.
hope I helped :-)
Geologists call an area where is one type of topography is a landform.