Biology
Grade-8
Easy
Question
Identify the water filtration method below.
- Desalination
- UV Radiation
- Solar purification
- Distillation
Hint:
UV radiation is a filtration method that removes metals from water.
The correct answer is: UV Radiation
- The inorganic UV filters, or also so-called physical UV filters, principally work by reflecting and scattering the UV radiation, while the organic UV filters, also called chemical UV filters, absorb the light.
- The physical UV filters are generally metallic oxides, although silicates and talc have also been used.
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