1) The only segment of the electromagnetic spectrum that the human eye can view a) Visible Light Spectrum b) X-rays c) Gamma Waves  d) Sigma Waves 2) Which of the following type of ionizing radiation are small, fast‐moving particles that vary in energy and penetrating power? a) Alpha particles b) Gamma Rays c) X-rays d) Beta particles 3) In the visible spectrum what color has the longest wavelength? a) Blue b) Yellow c) Red d) Orange 4) What is the common source of ionizing radiation in the environment? a) Uranium b) Visible light c) UV Light d) Power Lines 5) What is the primary health risk associated with excessive exposure to ionizing radiation? a) Cancer b) Skin Burns c) Headache  d) Fatigue

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