About ocean floor features: 1. Abyssal plains are vast, flat deep-ocean floors. 2. Oceanic trenches are typically shallow depressions. Which of the above is/are correct?
Statement 1 only
Statement 1 is correct: abyssal plains are extensive, very flat areas of the deep ocean floor, lying at depths of about 3,000–6,000 m and covered by fine sediments.
Statement 2 is incorrect: oceanic trenches are long, narrow and the deepest parts of the oceans, formed at subduction zones; the Mariana Trench reaches nearly 11,000 m.
So only Statement 1 is correct.
Hence, Statement 1 only.
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