Answer: The answer is b: macroscopic pollution
Piles of aluminum cans floating at sea would be an example of macroscopic pollution.
Explanation:
Pollution is the introduction of dangerous substances into the environment. Pollutants destroy the quality of air, water, and land. It makes water, air and land not suitable for use. Most things that are useful to humans produce pollution.
Macroscopic pollution refers to large items that are seen in bodies of water. Macroscopic pollution is manageable but the large pollutants have to be removed because of disruption of aquatic ecosystems and contamination upon the chemical breakdown of these items.