Answer: The primary cause of low pH in precipitation over northeastern North America is sulphuric acid (H2SO4) from industrial and urban emissions of sulphur dioxide (SO2). Nitric acid (HNO3) generated from emissions of nitrogen oxides (NOx) is a significant contributing factor in this region.
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Answer:
angle CAB = 20 degrees
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Answer:
I believe it is 48
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Answer:
-3x+30
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Answer:
120
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It is the only constant in the equation, 120.
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The proportionality is to the inverse of the square of d.