Fill in the blanks.
• skin cancer
• ultraviolet radiation
• high
• x-ray
• em waves
• lonizing radiation
• radio wave

1. high frequency em waves have____radiation that could cause negative effect to the body.
2. overexposure to ultraviolet radiation may cause ____.
3. the higher the frequency of____, the greater the rings it may cause.
4. high frequency em waves such as x-ray and gamma ray___ have that can cause negative effect to the body.
5. ____ in sunlight produce vitamin D in the skin and give as tanning effect.
6.____ are dangerous because they can damage healthy living cells of the body.

please don't give me a wrong answer.​