a mellanoma
A freckle.
Yes I have seen a dark spot on the Sun. It is called a "Sunspot". It is formed on the Sun's surface which is called the "photo-sphere" and is caused by a loop of the Sun's magnetic field poking though the Sun's surface.
Yes, the sun spot affects the durablity of your skin making it easier to result in skin cancer.
because their stay in dry spot and out in the sun
It is estimated that up to 90% of skin cancer cases are caused by exposure to ultraviolet (UV) radiation from the sun. UV radiation damages the DNA in skin cells, increasing the risk of skin cancer development. It is important to protect the skin from sun exposure to reduce the risk of developing skin cancer.
sun tan is caused when you lay in the sun for a while and the sun's rays which are so powerful began heating your skin causing a suntan
Faculae.
UV ray's from the sun
There is a lot of sun where black people originate. The black coloring is caused by a pigment called melanin which helps protect skin from intense sun.
Do NOT attempt to remove it yourself. Go to a doctor, a skin specialist called a dermatologist if possible, and allow the physician to examine the age spot before anything is done about it.
The dark spots on the surface of the sun are sunspots. They are caused by intense magnetic activity which stops convection and causes a relatively cool spot.
When your skin gets exposure to the sun rays, skin darkens. Sun tan is caused due to increased melanin. The color of skin darkens when you get a suntan.