A - Salinity because salinity is how much salt is in water and adding more would increase the salinity.
Answer:
there are 12 marbles. the probability of getting a yellow would be 2/12, the probability of drawing a red is 4/12, and the probability of getting a black is 3/12. (i think,, dont quote me if im wrong!)
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Explanation:
A hypothesis can become A. a scientific theory if it is supported by repeated experimentation.
Photosynthesis puts oxygen in the atmosphere.
We live in the troposphere, which is where we get our air from
