This is caused because the ovaries become fertile. There are different changes going on in our reproductive system due to estrogen.
Uneven staining on a wood surface can be caused by factors such as improper sanding, uneven application of stain, or differences in wood grain absorption.
Windwind.
If something is uneven, it means that the surface of it is not level. For example, paving stones can be described as being uneven if they are not level.
Depends on what you are reflecting ON... If it's not a clear or mirror like surface... then no, if it is, you can still see your reflection on an uneven surface... Why don't you actually EXPERIMENT and try to see it for yourself?
Surface Tension
An uneven road surface
Yes, some smooth surfaces may appear uneven under a magnifying lens due to imperfections, micro scratches, or variations in the surface. These minor flaws can be magnified and become more visible through the lens, giving the appearance of an uneven surface.
the earth's crust is uneven
a fracture
From the uneven heating of the earths surface
The uneven heating of Earth's surface by the Sun
The uneven surface of a bumpy chicken egg is caused by the presence of pores on the eggshell, which are natural openings for air and moisture exchange during the egg's development.