Which is NOT a cause of acid rain in Canada?
A Vehicle emissions
B Power plants that burn coal
C Rivers that produce hydroelectricity
D Vehicle emissions
C Rivers that produce hydroelectricity
C Rivers that produce hydroelectricity
The correct answer is C) Rivers that produce hydroelectricity.
To determine which option is a cause of acid rain, we need to understand what acid rain is and its primary sources. Acid rain is a type of precipitation that is more acidic than normal, typically caused by emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx). When these compounds are released into the atmosphere, they can react with water, oxygen, and other chemicals to form acidic pollutants that can be carried in the air for long distances before being deposited on the Earth's surface as acid rain.
Now, let's examine the options:
A) Vehicle emissions: Vehicle emissions, particularly from automobiles, are a significant source of sulfur dioxide and nitrogen oxides, which can contribute to the formation of acid rain. This makes A) a potential cause of acid rain.
B) Power plants that burn coal: Coal-fired power plants are known to release large amounts of sulfur dioxide and nitrogen oxides into the atmosphere, making them one of the main contributors to acid rain. Therefore, B) is a cause of acid rain.
C) Rivers that produce hydroelectricity: Hydroelectricity is a renewable energy source that does not emit sulfur dioxide or nitrogen oxides into the atmosphere. Hydroelectric power plants generate electricity using the force of flowing or falling water, usually by harnessing the energy of rivers. As a result, they do not contribute to acid rain formation. Hence, C) is NOT a cause of acid rain.
D) Vehicle emissions: As mentioned earlier, vehicle emissions, particularly from automobiles, can release sulfur dioxide and nitrogen oxides, contributing to the formation of acid rain. Therefore, D) is also a cause of acid rain.
In conclusion, option C) Rivers that produce hydroelectricity is NOT a cause of acid rain in Canada.