* Some questions may have more than 1 correct answer.
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Amount of questions: 24.
Right answers marked with this sign .
Which group of oil products given in the options is most likely to require a clean-up response in the event of a spill into the sea?
Crude oil, heavy diesel and lubricating oils.
Gasoline, kerosene and liquefied petroleum gas (LPG).
Fresh water, ballast water and bilge condensate.
Which one of the marine environments given in the options is most vulnerable to oil pollution?
Deep ocean waters.
Open sandy beaches with strong wave action.
Mangrove forest.
Select the option that most accurately completes the following statement. ‘MARPOL first entered into force in…
1973.
1978.
1983.
Which one of the given options is considered a chronic toxic effect of chemicals rather than an acute effect?
Temporary skin irritation.
Immediate dizziness after inhalation.
Problems with reproduction.
Which of the statements given in the options is FALSE?
Discharge of sewage often leads to problems in the open ocean.
Discharge of sewage can introduce harmful bacteria and viruses into coastal waters.
Untreated sewage may reduce oxygen levels in enclosed or sheltered waters.
Select the option that most accurately completes the following statement. Bioaccumulation can be defined as…
Chemicals are broken down by organisms.
The process by which chemicals are broken down by organisms.
Chemicals are rapidly diluted by seawater until they become harmless.
Which one of the statements given in the options is FALSE?
When animals eat plastic they always pass them out with body waste.
Plastic pollution can injure or kill marine animals through entanglement.
Large plastic items can gradually break down into microplastics in the marine environment.
How big are the ‘pools of garbage’ in the Pacific Ocean estimated to be?
About the size of Greenland.
The size of the continent of Europe.
Approximately the size of the Mediterranean Sea.
Select the option that most accurately completes the following statement. Dumping plastic at sea is…
Permitted more than 12 nautical miles from land.
Allowed if the plastic is biodegradable.
Never allowed.
Select the option that most accurately completes the following statement. The main problem with microplastics being present in the marine environment is that…
They may be eaten by small animals and enter the food chain.
They immediately dissolve in seawater and reduce salinity.
They rapidly sink to the seabed and disappear from the marine environment.
Select the option that most accurately completes the following statement. Once animals get entangled in solid waste it is a problem because…
They quickly adapt to the waste and use it as permanent shelter.
They may drown, suffocate, get injured or have trouble finding food.
They become immune to the harmful effects of marine debris over time.
Which of the given options are the components of ships’ diesel engine exhaust gas emissions that are the main contributors to acidification and acid rain formation?
SOx and NOx.
Carbon monoxide (CO) and oxygen (O2).
Nitrogen (N2) and water vapour (H2O).
Select the option that most accurately completes the following statement. The natural greenhouse effect is a good thing because…
It completely prevents ultraviolet (UV) radiation from reaching the Earth\'s surface.
It removes all carbon dioxide from the atmosphere.
Without it the average world temperature would be -18 °C.
Select the option that most accurately completes the following statement. In relation to climate change, the scientific community agree…
Climate change is caused only by changes in the Earth\'s orbit.
The climate is changing and humans play a role in this.
There is no evidence that the global climate has changed in recent history.
Which one of the given options best represents the main constituents that make up the exhaust gas emissions from ships’ diesel engines?
Oxygen, hydrogen, helium and argon.
CO2, SOx, NOx and PM.
Nitrogen, water vapour and neon only.
Select the option that most accurately completes the following statement. Emissions of SOx and small particles (PM) from ships into the atmosphere are relatively high because…
Marine diesel engines operate without exhaust systems.
Seawater reacts with exhaust gases to produce additional sulphur emissions.
Heavy fuel oil contains high concentrations of sulphur.
Which one of the given options is the most accurate definition of the term ‘invasive species’ in relation to the marine environment?
Alien species that become a pest in a new environment.
Native species that migrate seasonally within their natural range.
Marine species that are endangered due to overfishing.
Select the option that most accurately completes the following statement. Antifouling paint containing tributyltin has been prohibited by IMO because…
It increased the growth of unwanted algae on ship hulls.
It caused toxic effects in marine organisms.
It reduced the fuel efficiency of ships by increasing hull corrosion.
Which one of the statements given in the options is NOT true in relation to invasive marine species?
Invasive species can compete with native species for food and habitat.
Invasive marine species can be introduced through ships’ ballast water.
Invasive toxic algae kill shellfish like mussels.
With reference to ballast water, which ONE of the statements given in the options is FALSE?
Faster ships make it harder for marine species to travel.
Ballast water can transport marine organisms between different regions.
Invasive species can be introduced when ships discharge untreated ballast water.
Which of the combinations given in the options are the main components of diesel engine exhaust gas emissions that may cause health problems for humans?
CO2 and water vapour.
SOx and PM.
Nitrogen and oxygen.
Select the option that most accurately completes the following statement. Once microplastics are ingested by small animals at low levels in the food chain…
The microplastics are immediately destroyed and removed from the marine environment.
The small animals become immune to the harmful effects of plastic particles.
The chemicals contained in the plastic enter their body tissues and are passed on to organisms higher in the food chain.
Select the option that most accurately completes the following statement. Climate change is defined as…
…any change of climate over time which may be due to natural causes or as a result of human activity.
A short-term change in daily weather conditions only caused by human activities.
A permanent increase in global temperature caused only by volcanic activity.
Approximately how long does it take for a plastic bottle to break down in the marine environment?
450 years.
About 50 years.
Less than 5 years.
Welcome to the website where you can pass online the Computer Based Test (CBT) also known as Crew Evaluation System (CES) on the subject «Marine environmental awareness, Protecting the environment». Practice like this will help you as a marine specialist improve your knowledge with the help of online studying and appraisal practice. CES/CBT based on practical information and marine specialists experience.
