What is a qualitative observation

Explanation :

Qualitative observation : It is a type of observation that can be observed by our senses like touch, taste, smell, sight and hear. In the qualitative observation the number or measurements are not involved.

For example : colors, texture, shapes of the objects are the qualitative observation.

Quantitative observations : It is a type of observation that can be observed by instruments like scale, balance, thermometer, graduated cylinder, beaker, etc. In the quantitative observation the number or measurements are involved.

For example : Weigh 80 kg of sugar is an example of quantitative observation.

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.