Marine Pollution Quiz

What is marine pollution defined as?

• Introduction of substances to the marine environment resulting in neutral effects

• Introduction of substances to the terrestrial environment resulting in adverse effects

• Introduction of substances to the marine environment resulting in adverse effects

• Introduction of substances to the marine environment resulting in beneficial effects

Which source directly discharges municipal waste & sewage into the sea?

• Ship accidents & accidental spillage

• Residences and hotels in coastal towns

• Petroleum & oil washed off from roads

• Pesticides and fertilizers from agriculture

What is the effect of oil slick on marine life?

• Causes pleasant flavor to fish

• Has no impact on marine life

• Reduces market values of seafood

• Enhances marine life growth

What is the main threat to coral reefs mentioned in the text?

• Toxic sulphides in the water

• Industrial chemicals in the air

• Sediments from deforestation

• Benthic fauna disturbance

What is the control measure to reduce oil pollution mentioned in the text?

• High pressure jets of water

• Cleaning oil with chemical dispersants

• Crude oil washing

• Introduction of sewage treatment plants

What is the effect of organic waste addition on marine organisms?

• Enhances oxygen content

• Produces toxic substances

• Increases biodiversity

• Promotes aerobic bacteria growth

What is the impact of ship accidents on the marine environment?

• Beneficial effects

• Minor disturbances

• No impact

• Can be very damaging

What is the main concern raised about deep sea mining?

• Increase in marine biodiversity

• No environmental damage

• Disturbances to benthic layer

• Enhancement of marine habitats

What is the effect of 'red tides' mentioned in the text?

• Discolors the whole area

• Enhances marine biodiversity

• No impact on marine life

• Reduces organic waste

What is the impact of tanker accidents on marine life?

• Enhances marine activities

• Minor disturbances

• Major disasters

• No impact