Probably the next satellite to get turned into ring debris will be Neptune's backward moon, Triton
Indicate whether the statement is true or false
TRUE
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The atmosphere of ____ contains mostly nitrogen with some methane
a. Jupiter b. Earth's Moon c. Callisto d. Titan e. Miranda
The choices describe four hypothetical planets. Which one's surface would you expect to be most crowded with impact craters? (Assume the planets orbit a star just like the Sun and that they are all the same age as the planets in our solar system.)
A) Size: same as the Moon Distance from Sun: same as Mars Rotation rate: once every 10 days B) Size: twice as big as Earth Distance from Sun: same as Mercury Rotation rate: once every 6 months C) Size: same as Mars Distance from Sun: same as Earth Rotation rate: once every 18 hours D) Size: same as Venus Distance from Sun: same as Mars Rotation rate: once every 25 hours
Besides the aerosol sprays, another source of chlorofluorocarbons is
A) fossil fuels. B) biomass fuels. C) Both of the above. D) refrigerants. E) jet exhaust.
Bats can detect small objects such as insects that are of a size approximately that of one wavelength. If bats emit a chirp at a frequency of 60 kHz, and the speed of sound in air is 340 m/s, what is the smallest size insect they can detect?