Cumulative Exam — Cumulative exam Answers

Which of the following are important products of rainforests?a.timberb.pharmaceuticalsc.oxygend.all of the above

Reclamation restores an environment affected by mining to a state where it can sustain its ecosystem.

Which of the following about carbon sinks is not true?a.They emit more carbon than they take in.b.They take in more carbon they emit.c.They store carbon from the atmosphere.d.They include oceans and forests.

The principle difference between point source and nonpoint source water pollution is _______.a.whether the pollution is organic or inorganicb.the number of sources of pollutionc.the amount of pollutiond.whether it is from commercial or agricultural sources

Which of the following is a difficulty associated with environmental protection?a.costb.unpredictabilityc.sustainabilityd.all of the above

Why is preventing pollution at its source the first strategy in minimizing environmental risk?a.It is easier and more effective to prevent pollution than to clean up and dispose of waste.b.Remediation of contamination is easier than pollution prevention.c.Habitat restoration cannot be undertaken with modern technologies.d.Safe waste disposal is the easiest was to minimize environmental risk.

Which of the following is not a negative consequence of upward urban growth?a.pollutionb.creation of a “heat island”c.increased use of surrounding landd.waste management issues

How can the use of biotechnology lead to an increase in soil conservation practices?a.Biotechnology use can lead to a decrease in pesticide and herbicide use, maintaining soil quality.b.Biotechnology use can lead to soil compaction, preventing erosion.c.Biotechnology use can increase the amount of management required for agriculture, increasing the likelihood of the practice of soil conservation.d.All of the above

Forest management practices can reduce the negative impact of wood harvesting.

Desalination has no known negative impacts on the environment.

How does the use of hydroelectric energy compare to the use of coal?a.Hydroelectric energy is more commonly used than coal.b.Hydroelectric energy is associated with less waste production than coal.c.Hydroelectric energy has a larger environmental impact than coal use.d.Hydroelectric energy requires more land space than coal use.

Soil is a mixture of _______.a.solidsb.solids, liquids, and gasesc.solids and liquidsd.solids and gases

How can resource conservation benefit the environment?a.Resource conservation can help preserve natural habitats.b.Resource conservation can reduce water pollution.c.Resource conservation can reduce air pollution.d.All of the above

A Labrador retriever breeder needs to determine if three male pups who were born to Sadie, his black Labrador retriever, are the offspring of Sam, a yellow Labrador retriever from another breeder. Which process could the breeder use to determine if Sam is the father of the pups?

Seafood Watch has made several unsustainable fishing practices illegal.

The pedigree chart below shows the inheritance of a genetic trait in a breeding line of dogs.How many offspring did individuals 1 and 2 produce?

The table shows four species that have had to make changes due to an environmental change.

Which of the following scenarios is representative of how agricultural practices can affect the environment?a.increased oxygen levels in a pond due to fertilizer runoffb.sediment accumulation in a body of water near a farmc.soil compaction caused by tillaged.increased plant growth caused by the application of herbicides