The CFC propellants used in aerosol cans are chemically inert gases. This inertness leads to problems with stratospheric ozone because
A) inert gases do not travel far in the atmosphere, so they are likely to react before rising very high.
B) inert gases are especially likely to react chemically with the atmosphere.
C) inert gases can drift upward for great distances without being broken down by the atmosphere.
D) inert gases are especially attracted to ozone due to the fact that ozone is so highly reactive.
E) inert gases are especially attracted to other inert, or nonreactive, gases such as ozone.
C
You might also like to view...
A 41-turn square coil of area 0.074 m2 and a 123-turn circular coil are both placed perpendicular to the same changing magnetic field. The voltage induced in each of the coils is the same. What is the area of the circular coil?
a. 0.22 m2 b. 0.82 m2 c. 0.025 m2 d. 0.074 m2 e. 0.67 m2
_________________ galaxies are very luminous at X-ray and ultraviolet wavelengths and have broad emission lines in their spectra
Fill in the blank(s) with correct word
This famous image from the Hubble Space Telescope shows what is sometimes called the "pillars of creation." Which of the following best describes what it shows?
A) The pillars are clouds of gas and dust in which many new stars are forming; the edges of the pillars are sculpted by ultraviolet radiation from stars outside the pillars. B) Each of the pillars is a cloud of gas that will give birth to a single star, which will emerge from the top of its pillar. C) There is a hot, young star at the top of each pillar that is shooting a jet of gas that forms the pillar below the star. D) There is a single star outside the frame at the bottom, and the pillars are clouds of accreting particles that will form planets orbiting the star.
The speed of light changes when it goes from ethyl alcohol (n = 1.36) to carbon tetrachloride (n = 1.46). The ratio of the speed in carbon tetrachloride to the speed in ethyl alcohol, v2/v1, is
A. 1.99. B. 1.07. C. 0.932. D. 0.511. E. 0.760.