Q: What is the color of the powder of a mineral? Choices: - gray - organic - blue - streak A:
streak

Q: Behind the pupil, a single lens focuses light on a layer of what? Choices: - photons - chloroplasts - electrons - photoreceptors A:
photoreceptors

Q: What are 3 types of light? Choices: - complementary, incandescent, fluorescent - diffuse, ambient, opaque - solar , visible , ultraviolet - infrared, visible, ultraviolet A:
infrared, visible, ultraviolet

Q: What type of pollution is generated by power plants and factories that can directly raise the temperature of water? Choices: - atmospheric pollution - Space Pollution - variable pollution - thermal pollution A:
thermal pollution