To some extent acid rain has always been present in certain humid environments,but during the last century the spread of _____________ has greatly increased the destructive capabilities of natural acid rain.
A) human settlements
B) humanity in general
C) the Industrial Revolution
D) farming of marginal areas

Question

Quizplus · Accepted Answer

The term "acid rain" refers to rainwater that has become acidic due to interactions with sulfur dioxide and nitrogen oxides, which are primarily emitted by burning fossil fuels. The Industrial Revolution, which began in the 18th century and greatly accelerated in the 19th and 20th centuries, led to a significant increase in the burning of fossil fuels and therefore a significant increase in the amount of acid rain. Choices A, B, and D are not directly related to the increase in destructive acid rain.

To Some Extent Acid Rain Has Always Been Present in Certain