Where is oceanic crust thickest?a.at mid-ocean ridgesb.in the center of ocean plainsc.at deep-sea trenchesd.none of the above
The two principal ways to describe Earth’s structure are based on the _______.a.chemical composition and thickness of layersb.chemical composition and mechanical properties of layersc.mechanical properties and thickness of layersd.the composition and viscosity of minerals
A _______ is formed when tectonic plates collide.a.riftb.subduction zonec.faultd.all of the above
The movement of continents has affected weather patterns by _______.a.separating the continentsb.creating mountain rangesc.changing the location of the continentsd.all of the above
Weathering and erosion both contribute to the disintegration of rocks.
Which of the following is a result of natural erosion?a.desert sandsb.lost seed germinationc.widened valleysd.all of the above
Which of the following is an example of chemical weathering?a.waves washing over rocks on the beachb.acid rain falling on sidewalksc.ice forming in the cracks of rocksd.wind blowing against rocks
Artificial erosion does not impact the environment any more than natural erosion does.
Which of the following best describes the interaction between Earth’s crust and living organisms?a.Raw materials essential for life are cycled through Earth’s crust.b.Fossil fuels are a valuable energy source for the biosphere.c.The continental crust allowed the evolution of life on land.d.The crust recycles the organic materials in sedimentary rock.
What is true of both earthquakes and volcanoes?a.They are caused by movement of tectonic plates.b.They are potentially devastating to local environments.c.They occur inland less frequently than along coasts.d.All of the above are true of both earthquakes and volcanoes.
Animals do not contribute to natural erosion.
Which is an example of natural erosion?
Which of the following statements about artificial erosion is true?a.Artificial erosion can occur 100 times faster than natural erosion.b.Farming practices do not contribute to artificial erosion.c.Artificial erosion causes a loss of fertile soil.d.Artificial erosion is only caused by recreational activities.
Flooding can occur as a result of an earthquake.
Which of the following best explains the importance of Earth’s crust to living organisms?a.The continental crust allowed the evolution of life on land.b.The crust provides raw materials necessary for life.c.The crust allowed the formation of fossil fuels.d.The rock cycle recycles sedimentary rocks formed from animal shells.
Ocean ridges form as a result of _______.a.slab pullb.the upwelling of magma from the asthenospherec.sediment being deposited from the oceand.all of the above
Erosion occurs based on the movement of water, wind, or ice over a surface and typically moves on the downward-creep slope because of
Which of the following is true concerning continental crust?a.It does not contain radioactive elements.b.It mostly contains heavier and denser minerals than the mantle.c.It efficiently transfers heat from the mantle to the surface.d.None of the above
Oceanic crust is best described as _______.a.thin and youngb.continuously replenishedc.a majority of Earth’s crustd.all of the above
Volcanoes impact both the air and land of the surrounding environment.
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Unit Test
The Cycles of Matter