Question : The main source of marine pollution is:
Option 1: Oil spills
Option 2: Industrial waste
Option 3: Plastic waste
Option 4: Sewage discharge
Correct Answer: Plastic waste
Solution : The correct answer is (C) Plastic waste.
While all the options listed can contribute to marine pollution, plastic waste is considered the main source of marine pollution. Plastic materials, especially single-use plastics like bottles, bags, and packaging, are widely used and often end up in marine environments through improper disposal, littering, or inadequate waste management systems.
Plastic waste is particularly problematic because it does not biodegrade easily and can persist in the marine environment for long periods. It poses a significant threat to marine life, as animals can become entangled in plastic debris or mistake it for food, leading to ingestion and entanglement-related injuries and deaths.
Question : Which of the following is a non-point source of water pollution?
Option 1: Industrial discharge
Option 2: Sewage treatment plants
Option 3: Oil spills
Option 4: Agricultural runoff
Question : The major cause of water pollution in urban areas is:
Option 1: Industrial waste
Option 2: Agricultural runoff
Option 3: Untreated sewage
Option 4: Oil spills
Question : Which of the following is an example of non-point source pollution?
Option 2: Sewage treatment plant effluent
Option 3: Oil spill from a tanker
Question : What is a significant environmental concern associated with major ocean routes?
Option 1: Noise pollution affecting marine life
Option 2: Air pollution from ship emissions
Option 3: Water pollution from oil spills
Option 4: All of the above
Question : What is a major environmental concern associated with oil and gas pipelines?
Option 1: Noise pollution
Option 2: Visual pollution
Option 3: Soil erosion
Option 4: Oil spills and leaks
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