Question

3- Which of the following is a key part of the formation of most natural arches?

A- jointing and other fracturing
B- folding of soft rock layers
C-volcanic eruptions
D-spheroidal weathering
E- none of the above

4-Which of the following descriptions best describes the landscape shown in this photograph from the Investigation?

A-The balanced rock formed during a volcanic eruption.
B-This scene could have been formed by erosion of a layer of sandstone.
C-The sparse vegetation and apparently dry conditions imply that chemical weathering is relatively rapid here.
D-There are no joints visible in the photograph, nor would any be expected in this type of rock.

5-Which of the following processes is most important in sculpting the landscape shown in this photograph from the Investigation?

A-movement driven by gravity
B-stream erosion
C-stream transport
D-wind erosion

6-The agent of transport that produces talus is

A-running water.
B-wind.
C-gravity.
D-glacier.

Answer 1

3) D. spheroidal weathering The natural arches are formed by the erosion of wind and coastal erosion. The underlying rocks are cut due to the abrasion process of wind are sea waves. The overlying rocks could not be eroded, because there is not intense erosion on the overlying rocks by wind or sea waves. 4) B-This scene could have been formed by erosion of a layer of sandstone. 5) A-movement driven by gravity 6) C-gravity