Multiple Choice
Which of the following is not a greenhouse gas?
1. Intro to General Chemistry
Classification of Matter
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Which of the following is a source of point pollution?
A
Air pollution from vehicles
B
Urban stormwater
C
Runoff from agricultural fields
D
A factory discharge pipe
Verified step by step guidance1
Understand the definition of point source pollution: Point source pollution refers to contaminants that enter a waterway through a single, identifiable source, such as a pipe or a ditch.
Identify the characteristics of each option: Air pollution from vehicles is dispersed and not from a single point, urban stormwater is collected from various sources, and runoff from agricultural fields is diffuse.
Recognize that a factory discharge pipe is a specific, identifiable source, which fits the definition of point source pollution.
Compare the options: Only the factory discharge pipe is a direct and specific source of pollution, making it a point source.
Conclude that the factory discharge pipe is the correct example of point source pollution, as it directly discharges pollutants into the environment from a single location.
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