GENERAL KNOWLEDGE

GK

BIG BANG THEORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a sunspot?
A
a rock inside the sun
B
a star on the sun
C
a dark spot on the sun
D
None of the above
Explanation: 

Detailed explanation-1: -Sunspots are areas where the magnetic field is about 2, 500 times stronger than Earth’s, much higher than anywhere else on the Sun. Because of the strong magnetic field, the magnetic pressure increases while the surrounding atmospheric pressure decreases.

Detailed explanation-2: -What is a sunspot? It’s an area of intense magnetic activity on the surface of the Sun-a storm-that appears as an area of darkness. Sunspots are indicative of solar activity, giving birth to solar flares and coronal mass ejections (CMEs).

Detailed explanation-3: -Sunspots are generally harmless and don’t pose any health risks. Typically, the only reasons to remove sunspots are cosmetic ones. However, it is important to know the difference between sunspots and signs of skin cancer caused by sun damage. The most common type of skin cancer is melanoma, and it is the most serious.

There is 1 question to complete.