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What is Philadelphias nickname?
Philly
What is philadelphias biome?
philadelphia is in the same biome of the taiga
Who founded Philadelphias first library and hospital?
Benjamin Franklin
What effect does a high level of UV light have on phytoplankton?
the UV light kills single-celled organisms
What does uv level mean?
The UV level refers to the intensity of ultraviolet (UV) radiation from the sun at a particular location. It is typically measured on a scale from 1 to 11+, with higher levels indicating stronger and potentially more harmful UV exposure. It is important to pay attention to UV levels to protect your skin and eyes from sun damage.
How is the UV index measured and what factors are taken into consideration in determining its level?
The UV index is measured using a scientific instrument called a UV meter, which detects the intensity of ultraviolet (UV) radiation from the sun. Factors such as the angle of the sun, cloud cover, ozone levels, and altitude are taken into consideration when determining the UV index level.
What are the differences between UPF and UV protection in clothing?
UPF (Ultraviolet Protection Factor) measures the level of UV radiation blocked by fabric, while UV protection indicates the overall ability of clothing to shield against harmful UV rays. UPF specifically quantifies the protection level, while UV protection is a general term for any clothing that helps block UV rays.
What is the recommended SPF level for a cotton shirt to protect against harmful UV rays?
The recommended SPF level for a cotton shirt to protect against harmful UV rays is at least SPF 30.
How do you spell uv rays?
The acronym UV rays stands for ultraviolet radiation, a level of electromagnetic radiation that has a shorter wavelength than visible light.
What happens when higher energy UV radiations act on the oxygen at the higher level of the atmosphere?
ozone layer prevents harmful UV radiations to reach earth's atmosphere. ozone is formed at the higher level of atmosphere by the action of UV radiation on molecule. High energy UV radiations split apart some oxygen molecules into atomic oxygen which react with molecular oxygen to form ozone molecules.
What was The original purpose of the Constitutional Convention held in May 1787 in Philadelphias Independence Hall was to?
improve the Articles of Confederation.
What type of UV protection can I get from Oakley sunglasses?
Oakley has created a lens material called Plutonite which has the ability to stop every level of UV radiation. Even all of Oakley's clear lenses are 100 percent UV protected.
