Unit Test — Unit test Answers

Artificial erosion does not impact the environment any more than natural erosion does.

Which of the following is a long-term consequence of mining on the Earth? a. erosion b. an open pit c. sedimentation d. all of the above Please select the best answer from the choices provided

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.

Which of the following statements about horizons is true? a. They are characterized by whether they are solid, liquid, or gas. b. They are represented by Roman numerals. c. All soils have completely different horizon patterns. d. They are defined by their different physical features. Please select the best answer from the choices provided

Which of the following is a way that minerals are used? a. industry b. construction c. technology d. all of the above Please select the best answer from the choices provided

Permafrost (gelisol) is considered a hearty, robust soil type.

Which of the following factors does not affect soil formation?a.precipitationb.timec.erosiond.none of the above

How is over-irrigation damaging to soil?a.It reduces the amount of organic material in soil.b.It results in the accumulation of salt near the soil surface.c.It increases the acidity of soil.d.It removes water from the water table.

A _______ is formed when tectonic plates collide.a.riftb.subduction zonec.faultd.all of the above

Which of the following is a result of natural erosion?a.desert sandsb.lost seed germinationc.widened valleysd.all of the above

Soil fertility is best described as being dependent upon _______.a.the balance between organic matter and mineral nutrientsb.soil color and the local climatec.topography and the local climated.soil texture

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

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

Weathering and erosion both contribute to the disintegration of rocks.

How does mining affect local populations?a.Mining is a vital part of the economy of surrounding towns.b.Mining introduces pollution into local water supplies.c.Mining disrupts local populations of flora and fauna.d.All of the above are true.

Surface mining is more ecologically damaging than subsurface mining.

The presence of organic material in soil makes it more productive for plant growth.

Volcanic eruptions that occur as a result of continental shifting are typically found where

Which of the following readings is used to determine the availability of minerals?a.radioactivityb.magnetismc.gravityd.all of the above

Why is artificial erosion a concern if erosion can occur naturally?a.Artificial erosion changes environments while natural erosion does not.b.Artificial erosion occurs at a faster rate than natural erosion.c.Artificial erosion affects soil while natural erosion does not.d.Artificial erosion is of no concern.