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.
Step-by-step explanation:
Answer:
Not proportional
Step-by-step explanation:
If x and y are proportional then the equation relating them is
y = kx ← k is the constant of proportionality
To determine if x and y are in proportion then k must be equal for all ordered pairs, that is
k =
(2, 0) k = = 0
(4, 2) → k = =
(6, 4) → k = =
(8, 6) → k = =
Since k is not constant for all values then not in proportion
Answer:
2c-3y-4=0
Step-by-step explanation:
Standard form is when the answer is equal to zero.
Answer:
Use this pencentage change formula:
New - Old
---------------- x 100
Old
Step-by-step explanation:
390 + 35.10 = 425.1 (New value)
So apply this to the formula:
425.1 - 390
--------------- x 100
390
<em>Which is = 9%</em>
<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em><em> </em><em>Cheers</em><em>!</em><em> </em><em>:</em><em>)</em>