How might you explain the fact that Vermont and New Hampshire, states with very low sulfur dioxide emission, experience acid levels that are among the most severe in the country

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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i dont know the answe