specular reflection.
A bumpy surface covers more surface area than a flat surface because the bumps add extra surface area. This is due to the irregularities and protrusions on the bumpy surface that increase the overall area that comes into contact with other objects.
Presence of ribosomes on the membrane of endoplasmic reticulum makes the surface look bumpy.
A bumpy surface
An uneven road surface
A bumpy, rough surface so you don't slip.
It is called Minky...There is a flat Minky and Minky with Bumpy Dots to be precise
fake leather usually peels, and real leather does not, it is also thicker and more durable and has a rough or bumpy texture whereas fake leather is generally pretty smooth.
You have to dribble and shoot it. A basket ball aslso has bumpy layers too
The surface of Venus is mostly rough and bumpy, with thousands of volcanoes, large mountains, and vast plains covered in volcanic rock and impact craters. The surface is also hot enough to melt lead and is shrouded in thick clouds of sulfuric acid, making it one of the most inhospitable places in the solar system.
very rocky and bumpy
Lonely Grey Crater-y Bumpy