Year 9 Exam Revision Quiz

What is a significant source of pollution in the world's oceans?

• Rocks

• Sand

• Seaweed

• Oil spills

Besides oil, which pollutant majorly affects marine animals and birds?

• Plastics

• Sea foam

• Wood pieces

• Leaves

What is often found near busy shipping lanes and sites of oil spills?

• Sunken ships

• Coral reefs

• Fish schools

• Oil slicks

What effect do oil slicks have on marine life?

• Suffocate marine life

• Increase fish population

• Promote coral growth

• Clean the water

What is important when surveying local employment?

• Gathering data from a diverse group

• Only surveying high-income areas

• Ignoring part-time employment

• Focusing on one gender

How can survey questions be improved?

• Asking about the type of employment

• Asking only yes or no questions

• Making questions more vague

• Limiting options for answers

What indicates a country is more developed?

• High GDP per capita and life expectancy

• High birth rates

• Limited healthcare access

• Predominantly agricultural sector

What can rapid city growth in emerging countries lead to?

• More jobs and development

• Decreased living standards

• Reduced job opportunities

• Lower population density

What impact can an aging population have on a country?

• Fewer workers and more people needing care

• Decreased healthcare costs

• Increased birth rates

• More jobs for young people

What is a consequence of oil pollution in oceans?

• Cooling ocean temperatures

• Enhancing marine biodiversity

• Improving water clarity

• Disrupting ecosystems