A fish living in an environment cold enough to freeze the water in its body is not an extremophile.
Freshwater biomes have _______.a.organisms adjusted to high salinityb.more diversity than marine biomesc.a salinity of less than 1%d.the ability to maintain their temperature year round
There are risks associated with drinking potable water.
Which of the following is a way that climate affects soil formation?a.increased precipitationb.warmer temperaturesc.increased windsd.all of the above
Which of the following statements about large scale mineral extraction is true?a.The economic benefits of large scale mineral extraction outweigh the environmental costs.b.Large scale mineral extraction is more destructive than in the past.c.Large scale extraction is vital to the economy of mining towns.d.Mineral extraction cannot be done in ways that do not completely destroy the environment.
Land clearing and irrigation in Australia have only resulted in an increase in the amount of land available for use as farmland.
Continued deforestation will most likely lead to _______. a. a decrease in the number of endangered species b. an increase in the number of endangered species c. an increase in the number of oil and chemical spills d. a decrease in glacial melting Please select the best answer from the choices provided
What characteristic is shared by both inceptisols and entisols, the soils of flood plains?a.They both have well-developed soil horizons and profiles.b.Both are young and only beginning to develop horizons and a soil profile.c.They are both at the final stage of soil development.d.None of the above
Buffer zones _______.a.can help regulate the acidity of aquatic ecosystemsb.help increase erosion ratesc.are set up around natural resource areasd.all of the above
Which of the following best explains why humans need constant supplies of fresh water?a.Humans need a constant supply of water to provide them with essential vitamins.b.Humans need a constant supply of water to maintain proper hygiene.c.Constant supplies of freshwater are needed because body water is continually being lost.d.Constant supplies of freshwater are not actually necessary for survival.
Areas with more rainfall will have the same rate of soil formation as areas with less rainfall.
Humus creates good soil tilth, which is an indirect benefit of microorganism action.
Why is phytoplankton located near the ocean’s surface?a.It cannot live in areas of high salinity.b.It can more easily evade predators on the oceans’s surface.c.It needs access to oxygen only found at the ocean’s surface.d.It needs sunlight to survive.
If predators A and B prey upon the same species and predator A is eliminated, the population of predator B will likely __________. a. be eliminated b. increase c. decrease d. remain the same Please select the best answer from the choices provided
Fossil fuels are an important natural resource used by society. Which of the following best describes fossil fuels? a. They are any liquid fuel derived from once-living matter. b. They are organic fuels derived from ancient plants and animals. c. They are fuels in which dinosaur fossils are commonly found. d. They are naturally occurring inorganic fuels like coal and petroleum. Please select the best answer from the choices provided
How is the heat generated by the reactor core of a nuclear power plant used to provide power to buildings?a.It is used directly to heat homes and offices.b.It generates steam, which turns a turbine, powering a generator.c.It generates steam, which is then condensed back to water. This process produces energy.d.All of the above
Which of the following best explains how human activities can directly contribute to landslides? a. Removing plants from hillsides eliminates the root structures that anchor soil. b. Clearing trees from hills increases the frequency of rainstorms. c. Human activities tend to reduce the risk of fires. d. Landslides are not impacted by human activities. Please select the best answer from the choices provided
Which of the following statements about biodiversity is not true?a.Changes to biodiversity never occur naturally.b.Changes to biodiversity can lead to a decrease in ecosystem stability.c.Changes to biodiversity can positively and negatively affect on an ecosystem.d.Changes to biodiversity can lead to an increase in ecosystem stability.
Decomposers such as fungi break down the nutrients in dead plant and animal matter for use by _______.a.producersb.primary consumersc.secondary consumersd.tertiary consumers
Minerals are extracted from the Earth through various mining practices.
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