Dark patches of skin on the neck may be acanthosis nigricans. This mostly happens in overweight adults that are pre-Diabetes. This patch of dark skin indicates that your body is insulin resistant. These dark patches may also be hereditary. This is called hyperpigentation.
What are the dark patches on the sun's surface called
Those dark patches are craters from meteors that hit the moon.
Sunspots .
Sun Spots!
your going to die
The large brown figure on the flag of California is a bear. The bear is walking on grass and on the grass appears to be dark green (or brown) clumps. These clumps are patches of grass.
They are called, sunspots.
Simple...wash your feet
The perspiration was making dark patches on his shirt.
Yes
A zain is a horse of dark colour with no lighter patches on its body.
in moist, dark patches of trees, rocks and soil