Ultraviolet radiation is unseen by the naked eye though the effect are often felt from sunburns to skin cancers. The Ultraviolet or UV radiation is the beneficial for needing vitamin D but over exposure can cause skin cancer.
The industrial use of freons did do this in the period up until the end of the 1980s, by destroying much of the atmospheric ozone layer, which normally blocks most of the sun's ultraviolet radiation reaching the earth. Fortunately, world governments took action in time, and the ozone layer is restoring itself. This is an object lesson that should be heeded in dealing with global warming.
no
An increase in biologic activity
Human industrial activity, cement manufacture, and transport, releasing carbon dioxide and other greenhouse gases into the atmosphere in large amounts. Deforestation is also an important cause.
It causes an increase in the Earth's temperature.
The answer is human activity! The burning of fossil fuels (coal, oil and natural gas) and deforestation (cutting down trees which previously removed carbon dioxide (CO2) from the atmosphere) are the main causes of the increase.
mining activity can be a cause...
No
no
an increase in biological activity. :)
An increase in biologic activity
Ultraviolet radiation can be a cause of skin cancers.
cause
ultraviolet
swelling of teeth
Exposure to ultraviolet ray would cause mutations of genetic materials,cause skin rashes and cancer_that is the major economical importance
No, infrared does not cause sunburn. Those are ultraviolet rays that cause sunburn.
Ultraviolet rays from the Sun cause sunburns.
There are a number of types of radiation that can cause mutation in humans.Gamma radiation is probably the one you were thinking of, but ultraviolet radiation can also cause mutation.Pretty much any kind of radiation that causes mutation will almost always cause cancer, as a result.