Which of the following is true concerning sources of water pollution? a. mine wastes and heavy metals become water pollution through storm water runoff. b. biodegradable materials like food, wood, and leaves are not considered pollution. c. petroleum byproducts and fuels end up as pollution principally from oil spills. d. pesticides and herbicides do not commonly become water pollutants.

c. Petroleum byproducts and fuels end up as pollution principally from oil spills.

Explanation:

c. Petroleum byproducts and fuels end up as pollution principally from oil spills is the correct option due to the fact that petroleum byproducts and fuels are the chemical pollutants. These fuels are used to drive water transportation vehicles. These vehicles leave large amount of incomplete or partially combusted fuel in water or fuel may leak out from the vehicle. These fuels contaminate the water and deteriorates it's quality.  

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.

b. to discover aspects of the natural world.

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