Chapter 19 Questions

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What is the relationship between water currents and cross beds? A. Cross beds sit parallel to current direction. B. Cross beds sit perpendicular to current direction. C. Cross beds sit at an angle to current direction.

C. Cross beds sit at an angle to current direction.

Also known as steppe, _________ climates are a type of dry climate that contain more water than arid climates.

Semiarid

A high rate of __________ is often characteristic of a climate with high temperatures and low humidity.

evaporation

Thick ______ is not found in deserts because there are fewer plants than in more _______ climates.

soil, humid

Fill In The Blank Options

soil, rock, evaporation, precipitation, steppe, semiarid, arid

A desert has a drier climate than a(n) ________.

steppe

What are cross beds? A. inclined layers in sediment or sedimentary rocks that reveal the direction of wave transport B. inclined layers in sedimentary rocks that reveal the direction of wave transport C. inclined layers in sediment or sedimentary rocks that reveal the direction of wave or wind transport D. inclined layers in sediment or sedimentary rocks that reveal the direction of wind transport E. inclined layers in sedimentary rocks that reveal the direction of wave or wind transport

C. inclined layers in sediment or sedimentary rocks that reveal the direction of wave or wind transport

What do cross beds represent? A. the orientation of Earth's surface B. the orientation of the moving Earth's surface C. the moving front of a ripple or dune D. the moving back of a ripple or dune

C. the moving front of a ripple or dune

Why do desert dunes migrate? A. Water erodes material on the back side of the dune and deposits it on the front side of the dune. B. Water erodes material on the front side of the dune and deposits it on the back side of the dune. C. Wind erodes material on the front side of the dune and deposits it on the back side of the dune. D. Wind erodes material on the back side of the dune and deposits it on the front side of the dune.

D. Wind erodes material on the back side of the dune and deposits it on the front side of the dune.

How do pieces of rock move under the influence of wind? A. bouncing, sliding, dissolution, rolling B. rolling, sliding, bouncing, suspension C. rolling, sliding, dissolution, suspension D. bouncing, sliding, dissolution, suspension

B. rolling, sliding, bouncing, suspension

What property of a piece of material will most directly determine how it is carried by wind? A. shape B. size C. composition

B. size

What is dust? A. the particles carried in suspension by wind or water B. the particles carried in suspension by wind C. the particles carried in suspension by water

B. the particles carried in suspension by wind


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