A. Chlorine
B. Nitrogen
C. Ammonia
D. Carbon dioxide
Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy?
A. radio, visible, infrared, ultraviolet, x-ray, gamma ray
B. radio, infrared, visible, x-ray, gamma ray, ultraviolet
C. visible, radio, infrared, ultraviolet, x-ray, gamma ray
D. radio, infrared, visible, ultraviolet, x-ray, gamma ray
A. Because the sunlight falling on it is scattered.
B. Because the sunlight falling on it is absorbed.
C. Because the sunlight falling on it is refracted.
D. Because the sunlight falling on it is reflected.
“The ocean looks blue because red, orange and yellow (long wavelength light) are absorbed more strongly by water than is blue (short wavelength light). So when white light from the sun enters the ocean, it is mostly the blue that gets returned. Same reason the sky is blue.”
A. The hair barging against the charged comb
B. Small electric sparks
C. The rubbing of the comb with the hair
D. None of the above
A. Nitrogen Dioxide (NO2)
B. Chlorofluorocarbons (CFCs)
C. Methane (CH4)
D. High-fructose corn syrup (HFCs)
A. Pyrex glass
B. jena glass
C. Flintglass
D. Soft glass