Question

How can we create this type of theme ​

Answer 1

Answer:

The circumference of a circle is equal to pi times the diameter. The diameter is two times the radius, so the equation for the circumference of a circle using the radius is two times pi times the radius

Explanation:

I also want to know that

Answer 2

Answer:

Thunderstorm, a violent short-lived weather disturbance that is almost always associated with lightning, thunder, dense clouds, heavy rain or hail, and strong gusty winds. ... Thunderstorms arise when layers of warm, moist air rise in a large, swift updraft to cooler regions of the atmosphere.