Can somebody please give me the answer to those 3 questions please

Volume increases Temperatures High

Pressure decreases when we have low temperature.

This is because volume and temperature are directly related.

One example is the ideal gas formula PV = nRT

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's surface.