How does the ozone layer the earth?

The ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (UVR) from the sun, protecting life on Earth from its potentially harmful effects. When the sky is clear, there is an inverse relationship between stratospheric ozone and solar UVR measured at the Earth'ssurface.

The ozone layer help the Earth is discussed below.

Explanation:

The function of the ozone layer as a filter for the smaller wavelength and profoundly dangerous ultraviolet radiation from the day-star, preserving living beings on Earth from its possibly devastating effects. During the atmosphere is cleared, there is an inverted correlation between stratospheric ozone and solar ultraviolet radiation included at the Earth's exterior.

Aplant cell has vacuoles and a cell wall

Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.