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5. What kind of light coming from the sun and may cause skin cancer?
A Infrared
B. Microwave
C. Ultraviolet
D. X-ray
6. Which material do not allow heat and electricity to flow through then?
A. Capacitors
B. Conductors
C. Connectors
D. Insulators
7. Which material allows heat and electricity to pass through it?
A Metal
B. Plastic
C. Rubber
D. Silk
8. Which is NOT a part of an electrical circuit?
A. bulb
B. magnet
C. switch
D. wires

please help me:(​