Which of the following statements is true? the weight of a column of seawater 1 m2 in cross section and 10 m high is about 2.00×105 n. the weight of a column of seawater 1 m2 in cross section and 10 m high plus the weight of a column of air with the same cross section extending up to the top of the atmosphere is about 2.00×105 n. the weight of 1 m3 of seawater at 10 m below the surface of the ocean is about 2.00×105 n. the density of seawater is about 2.00×105 times the density of air at sea level.
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in cross section and 10 m high + the weight of a column of air with the same cross-section elongating up to the top of the atmosphere is about 
” is true from the above-given sentences.
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Which of the following statements is true? the weight of a column of seawater 1 m2 in cross section...
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