General Knowledge - Basic General Knowledge - Discussion

How to get the vitamin D from UV?

What is the ozone layer is this a gas, liquid or solid please?

Ozone layer for earth like a umbrella. It will avoid diseases from rays, for that we have to avoid the factories steam.

The ozone layer is a layer in Earth's atmosphere containing relatively high concentrations of ozone (O3). However, "relatively high, " in the case of ozone, is still very small with regard to ordinary oxygen, and is less than ten parts per million, with the average ozone concentration in Earth's atmosphere being only about 0. 6 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere from approximately 20 to 30 kilometres (12 to 19 mi) above Earth, though the thickness varies seasonally and geographically.

How it is possible ,if ozone layer protect uv rays ,then how man gets vitamin D

Ozone layer protects us from harmful ULTRAVIOLET radiations. But due to the increase of pollutions the Ozone layer is depleted, the concentration of Carbon-dioxide increases and this causes dizziness in body and sometimes leads to death of the person.

The depletion of ozone layer leads to skin cancer ect.

UV rays are harmful for human skin and body, ozone layer protects UV radiation, but these days increase in pollution and in CFC level has depleted this ozone layer.

Ozone layer protect us from uv rays of sun. So optetion "D" is correct.

The ozone is the outer protective layer of earth. it does not allow the ultraviolet rays to reach the earth atmosphere. If the ultraviolet rays fall on earth then various skin cancer and other dieases will occur in both plants and animals.

Sun contains a very dangerous rays called UV rays and the ozone layer which is present in the earth's atmosphere and it protects the earth from the UV rays and convert it into Infrared rays which is better than the UV rays and it is also very much necessary for every creature.