(Question)
Q: Visible light is part of what spectrum? Choices: - mechanical spectrum - eclipse spectrum - molecular spectrum - electromagnetic spectrum A:
(Answer)
electromagnetic spectrum

(Question)
Q: The risk of what is raised by overexposure to the sun? Choices: - particle cancer - flux cancer - brain cancer - skin cancer A:
(Answer)
skin cancer

(Question)
Q: What are the things moving under the earth's mantle that move the crust? Choices: - crystals - ridges - lava channels - plates A:
(Answer)
plates