Ultraviolet rays kill harmful germs present in the water, hence purifying it.
No it can't poison water. If that was the case nothing could live in or around water. Animals drink it. People drink it. Trees grow around and in water. Fish swim it. In fact, it's the opposite. UV rays can purify contaminated water. The SODIS method (look it up) is used in many countries around the world where clean water is not available. Water is put into a clean PET bottle and left in the sun for 6 hours. After that the water is clean and safe to drink.
it gives you rays that help your bones and teeth grow
it gives you rays that help your bones and teeth grow
No, rainbows are created by the refraction and dispersion of sunlight by water droplets in the atmosphere. Ultraviolet rays are not directly responsible for creating rainbows.
One of the useful effects of ultraviolet rays of the sun is in producing Vitamin D. UV rays are needed by the human body or skin to make Vitamin D. Exposure to UV rays also help in terms of skin conditions like psoriasis.
Bees can see ultraviolet rays.
Johann Wilhelm Ritter discovered ultraviolet rays
Yes, X-rays and gamma rays have higher frequencies than ultraviolet rays.
Both Gamma Rays and X Rays have a much high frequency that Ultraviolet Rays.
The next name of wavelengths longer than ultraviolet rays is "violet light".
Ultraviolet rays cannot be seen or felt. Ever had a sun-burn? I say UV rays can be felt.
This statement is incorrect. Infrared rays have a longer wavelength than ultraviolet rays. Infrared rays have wavelengths longer than visible light, while ultraviolet rays have wavelengths shorter than visible light.