Erosion.
The choices for this question are either a: U cross-Valley Profile, Y Cross-Valley Profile, V cross-valley profile, or S Cross Valley Profile.The answer to this question is a: U cross-valley profile is typical of canyons and valleys eroded by alpine or valley glaciers.
The Palo Duro canyon was formed from water erosion from the prairie dog town branch of the Red River. Wind and water erosion deepened and widened the canyon to the shape we see today.
Traffic moved much more quickly once the highwy was widened. His economic plan only widened the gap between the rich and the poor. My sister's feet widened when she was pregnant with twins. To accomodate a third car, carpenters widened our garage.
A tributary valley that joins a main valley where the latter has been deepened, usually by glacial erosion, resulting in a steep drop from the floor of the tributary valley to the floor of the main valley. For the source and more detailed information concerning this subject, click on the related links section (Answers.com) indicated below this answer box.
The past tense of "deepen" would be "deepened".
Dredging,
The choices for this question are either a: U cross-Valley Profile, Y Cross-Valley Profile, V cross-valley profile, or S Cross Valley Profile.The answer to this question is a: U cross-valley profile is typical of canyons and valleys eroded by alpine or valley glaciers.
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Hiatus hernia?
wide
A widened mediastinum measures greater than 6 cm on an upright chest x-ray. Widened mediastinum can be indicative of an aortic aneurysm, esophageal rupture, cardiac tamponade or a pericardial effusion.
In daytime, intense solar heating causes rocks to expands. At night, the temperature falls so rocks cool and contrasts. Repeated expansion and contraction produces stress along joints. Joints are then widened and deepened and finally break down the rocks block by block.