Final Review Part 1

Which is a benefit of recycling plastic bottles?

• Only renewable energy is used at recycling plants

• Less oil is needed for plastic production

• Energy usage is the same for both new and recycled materials

• Landfills have to be expanded because of the increase in waste materials

What is the most limiting factor if human population continues to grow at its present rate?

• Resources for shelter

• Enough space to live

• Farmland to produce food

• Availability of drinking water

Which activity negatively affects an environment’s biodiversity?

• Deforestation that leads to increased habitat loss

• Fossil fuel use that causes an increase in oxygen levels

• Fertilizer use that causes a decrease in freshwater nitrogen levels

• Urban development that leads to a decrease in invasive species

How does the introduction of an invasive species affect an ecosystem?

• By producing native species from predators

• By attracting more predators to the area

• By competing for space and food with native species

• By increasing the biodiversity of the ecosystem

Which would most likely be a consequence of a large scale reduction in Earth’s biodiversity?

• An increase in global climate changes

• A major change in the distribution of Earth’s freshwater

• A disruption of major food webs across the world

• An increase in abiotic factors on a global scale

Which is a biotic factor that could affect an ecosystem?

• Dust storms moving through an ecosystem

• Bacteria harming the health of organisms in an ecosystem

• Large amounts of acid rain precipitation seeping into the soil in an ecosystem

• High levels of carbon dioxide entering the atmosphere within an ecosystem

Which statement best explains how rising atmospheric levels of CO2 could influence Earth’s oceans.

• It could lead to an increase in the acidity of the oceans

• It could lead to an increase in the size of deep water coral reefs in the oceans

• It could lead to an increase in solar radiation striking the surface of the oceans

• It could lead to an increase in the number of hurricanes formed over the oceans

How would the complete melting of all glaciers negatively influence Earth?

• It would raise ocean levels

• It would increase levels of greenhouse gases

• It would pollute water contained in aquifers

• It would decrease reflection of solar radiation

What could result from an increase in ocean surface temperatures?

• A decrease in ocean salinity

• A decrease in evaporation rates

• A decrease in ocean biodiversity

• A decrease in the occurrence of hurricanes

Which is most responsible for producing greenhouse gases?

• Agriculture

• Aquaculture

• Hydropower

• Transportation