Helen weighed three pieces of rock and soaked them in water. The next day, she weighed them again. Her results are shown below. Rocks that have lots of small spaces are described as porous. What evidence is there in the table that sandstone is porous, but granite and marble is not porous?
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Helen weighed three pieces of rock and soaked them in water.
The next day, she weighed them again.
Her results are shown below.
rock
mass before
soaking in water (g)
26.3
mass after
soaking in water (g)
26.3
granite
marble
20.4
20.4.
sandstone
25.5
27.6
Explanation:please brainliest
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