UNIVERSE
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Gas Giants
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Terrestrial
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Either A or B
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None of the above
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Detailed explanation-1: -A terrestrial planet, telluric planet, solid planet, or rocky planet, is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets accepted by the IAU are the inner planets closest to the Sun: Mercury, Venus, Earth and Mars.
Detailed explanation-2: -Terrestrial planets (Earth sized and smaller) are rocky worlds, composed of rock, silicate, water and/or carbon. To determine if some of these worlds have atmospheres, oceans or other signs of habitability, it takes more investigation.
Detailed explanation-3: -Terrestrial rocks are formed by three main mechanisms: Sedimentary rocks are formed through the gradual accumulation of sediments: for example, sand on a beach or mud on a river bed. As the sediments are buried they get compacted as more and more material is deposited on top.
Detailed explanation-4: -Terrestrial Planet Formation The heavier rocky and metallic materials are better suited to condense at higher temperatures. Thus, the inner planets are made almost entirely of rock and metal and form the group known as the terrestrial planets.
Detailed explanation-5: -Terrestrial planets are planets made up of rocks or metals with a hard surface-making them different from other planets that lack a solid surface. Terrestrial planets also have a molten heavy metal core, few moons, and landforms such as cliffs, valleys, volcanoes and craters.
Detailed explanation-6: -The Terrestrial Planets The most abundant rocks, called silicates, are made of silicon and oxygen, and the most common metal is iron. We can tell from their densities (see Table 7.1. 2) that Mercury has the greatest proportion of metals (which are denser) and the Moon has the lowest.
Detailed explanation-7: -Unlike the terrestrial planets that make up our inner solar system-Mercury, Venus, Earth, and Mars-the Jovian planets do not have solid surfaces. Instead, they are composed primarily of hydrogen and helium, with traces of methane, ammonia, water, and other gases in their atmospheres.