Question

Rain is called acid rain when its: *
a) pH falls above 9
b) pH falls equals to 7
c) pH is above 7
d) pH falls below 5.6

Answer 1

Answer:

option d

Explanation:

d into the air, they react with water and oxygen and produces sulfuric and nitric acids. These acids then mix with water and result in acid rain. Normal rain water is slightly acidic with a pH range of 5-6. When the pH level of rain water falls below this range, it becomes acid rain. It can have harmful effects on plants, aquatic animals and infrastructure.

Thus, the correct answer is option D.

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Answer 2

Answer:

Answer is d means below 5.6