Mars and Mercury are similar in size, and Mercury is even denser. Why then is it that Mars has more atmosphere?
What will be an ideal response?
Its location is too close to the Sun; Mercury's gases boil away in the solar wind. Colder Mars has enough gravity to hang on to more, even though its water is no longer liquid today.
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In neutronization of the core, a proton and an electron make a neutron and a(n):
A) positron. B) muon. C) neutrino. D) pion. E) antineutron.
The time before the Phanerozoic eon is collectively called ______________ time
Fill in the blank(s) with correct word
When a bimetallic strip is cooled, the strip will bend toward the side
A) with the larger coefficient of linear expansion. B) with the smaller coefficient of linear expansion. C) with the higher temperature. D) with the lower temperature. E) depends of the method of heating
Centripetal force changes linear momentum but not angular momentum
a. True b. False Indicate whether the statement is true or false