What is approximate range of wavelength absorbed by ozone layer?

What is the range of ph scale

What is range of wavelength for visisble light?

What is the range of length of sponges?

What is the approximately density of nucleus?

Which part of solar radiation is absorbed by ozone layer ?

What is the use of ozone layer?

Identify the type of elecromagnetic waves,whose method of porduction is associated with deay of atomic nulei.Also give the approximate range of wavelengths .