GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Large gas planets with thick atmospheres
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Small planets of ice with elliptical orbits
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Dense, rocky planets with few moons
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Barren planets with rings of gas and dust
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Detailed explanation-1: -Terrestrial planets also have a molten heavy-metal core, few moons and topological features such as valleys, volcanoes and craters. In our solar system, there are four terrestrial planets, which also happen to be the four closest to the sun: Mercury, Venus, Earth and Mars.
Detailed explanation-2: -Inner planets are small and rocky planets, and outer planets are large and gaseous.
Detailed explanation-3: -The temperature of the early solar system explains why the inner planets are rocky and the outer ones are gaseous. As the gases coalesced to form a protosun, the temperature in the solar system rose. In the inner solar system temperatures were as high as 2000 K, while in the outer solar system it was as cool as 50 K.
Detailed explanation-4: -Which statement describes the density of the inner planets? All the inner planets are dense.