Biology
Grade-10
Easy
Question
Which of the following processes is primarily responsible for the majority of environmental issues caused by excess nitrogen and phosphorus entering streams, lakes, and oceans?
- Decomposition
- Agriculture and household runoff
- Emissions from automobiles
- Photosynthesis
Hint:
Agriculture and household runoff
The correct answer is: Agriculture and household runoff
release of sewage waste, agriculture runoffs, urban watersheds runoff, etc., causes eutrophication due to enrichment of nutrients in the water body thus, increasing the amount of plant and algae growth to estuaries and coastal waters.
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