what is physical desciption?

Answer 1

Description of the size, shape, color, texture of an object or territory, feature etc.

Answer 2

Here is an example. I hope it helps.
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PHYSICAL DESCRIPTION
With water flowing through portions of 8 counties (Jefferson, St. Clair, Shelby, Bibb, Perry, Dallas, and small portions of Tuscaloosa and Chilton,) the watershed covers an area of 1,870 square miles. For its length of 190 miles, the Cahaba River remains the longest free-flowing river remaining in Alabama.
Total land area in the Cahaba is approximately 1,163,574 acres.

The first 100 miles passes through Trussville, Leeds, Irondale, Birmingham, Mountain Brook, Helena, West Blocton and Centreville. This section is referred to as the Upper Cahaba and is the most mountainous, full of steep banks, high bluffs and rocky shoals.

The Cahaba River originates on the southern slope of Cahaba Mountain northeast of Birmingham, at an elevation of approximately 1,200 feet. The river has an average slope of 15 feet per mile for the first 25-30 miles, then drops to a slope of 2.5 feet per mile for 44 miles, and finally flattens to a slope of .6 feet per mile to its mouth. (Corps) Elevation in the watershed ranges from 1,100 feet in Shelby County to 100 feet at the confluence with the Alabama River. (Source)
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Answer 3

Okay,
describe the couch...

It is bigger than a breadbox, olive green, has ridges that resemble corduroy, it has two large humps at the back, and two comfy looking swirly arms,...

Here are some physical descriptors:
bigger than
smaller than
rough
smooth
soft
light
round
flat
jagged
red, yellow, orange, green, you get the idea
Shiny
Dull
etc.

Answer 4

ex. That kid looks ugly, he smells bad, he is really loud, his clothes look rough and (im not going there with taste, ahha)

a discription using any of the 5 senses

Answer 5

You've GOT to be kidding me.