Grade 8 human impact on earth
Quiz by Andrea Conley
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20 questions
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- Q1What is the main cause of climate change on Earth?Excessive use of fossil fuels by animalsChanges in the Earth's orbit and tiltGreenhouse gas emissions from human activitiesNatural fluctuations in the Sun's energy output30s
- Q2What is deforestation?The use of forest resources sustainablyThe study of forest ecosystemsThe clearing of forests for human use or settlementThe planting of new forests for conservation30s
- Q3What is pollution?The natural decay of organic matterThe release of harmful substances into the environmentThe use of renewable resourcesThe growth of plants and animals in an ecosystem30s
- Q4What is an example of non-renewable energy?CoalHydroSolarWind30s
- Q5What is the purpose of the Montreal Protocol?To prevent ocean acidificationTo reduce greenhouse gas emissionsTo protect the ozone layer from depletionTo promote sustainable agriculture30s
- Q6What is eutrophication?The excessive growth of algae and other aquatic plants due to nutrient pollutionThe removal of nutrients from the environmentThe process of nutrient cycling in an ecosystemThe development of new aquatic species30s
- Q7What is overfishing?The removal of invasive fish speciesThe harvesting of fish faster than they can reproduceThe use of sustainable fishing techniquesThe release of fish back into the wild30s
- Q8What is urbanization?The expansion of rural areasThe decline in population in urban areasThe growth of cities and towns due to migration and population growthThe creation of suburban areas30s
- Q9What is desertification?The process of land becoming desert due to overuse, climate change, or natural disastersThe growth of vegetation in arid regionsThe removal of sand and other debris from desertsThe creation of deserts through human intervention30s
- Q10What is sustainable development?Developing the environment without regard for future generationsProtecting the environment at all costsUsing renewable resources exclusivelyMeeting the needs of the present without compromising the ability of future generations to meet their own needs30s
- Q11What is a nonrenewable resource?Solar energyWind energyHydro energyFossil fuels30s
- Q12What happens when too much waste is put into landfills?It can contaminate soil and waterIt will turn into compostIt will decompose quicklyIt will create more land30s
- Q13What is the main cause of deforestation?Forest firesClearing land for agricultureLack of rainfallVolcanic eruptions30s
- Q14What is the main cause of global warming?Water pollutionGreenhouse gas emissionsSoil erosionAir pollution30s
- Q15What is an example of a renewable resource?CoalOilWind energyNatural gas30s