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Type: Multiple-Choice
Category: Oceanography and Hydrology
Level: Grade 7
Tags: salinity
Author: meganber
Last Modified: 6 years ago

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Oceanography and Hydrology Question

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Grade 7 Oceanography and Hydrology

What mathematical unit is used to measure salinity?
  1. parts per thousand (ppt)
  2. parts per million (ppm)
  3. parts per billion (ppb)
  4. none of the above