universe & solar system section 9 Practice Questions Answers Test with Solutions & More Shortcuts
Universe, solar system and Astronomy PRACTICE TEST [13 - EXERCISES]
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Question : 21
The approximate diameter of Earth is
a) 3400 km
b) 12800 km
c) 6400 km
d) 4200 km
Answer »Answer: (b)
The approximate diameter of Earth is 12800 km. The rotation of the planet has slightly flattened it out, so it has a larger diameter at the equator than at the poles.
The equatorial diameter of Earth is 12,756 km, its polar diameter is 12,713 km, and its average diameter, which is referred to in common usage, is 12,742 km or 7,926 miles.
Question : 24
The group of stars arranged in a definite pattern is called
a) Andromeda
b) Solar system
c) Constellation
d) Milky way
Answer »Answer: (c)
The group of stars arranged in a definite pattern is called a constellation. In modern astronomy, a constellation is an internationally defined area of the celestial sphere.
These areas are grouped around asterisms, which are patterns formed by prominent stars within apparent proximity to one another on Earth’s night sky.
Question : 25 [SSC IT 2009]
Among the following, the celestial body farthest from the Earth is
a) Neptune
b) Pluto
c) Uranus
d) Saturn
Answer »Answer: (a)
Pluto, formal designation 134340 Pluto, is the second-most-massive known dwarf planet in the Solar System (after Eris) and the tenth-most-massive body observed directly orbiting the Sun.
Originally classified as the ninth planet from the Sun, Pluto was recategorized as a dwarf planet and plutoid owing to the discovery that it is only one of several large bodies within the Kuiper belt.
Like other members of the Kuiper belt, Pluto is composed primarily of rock and ice and is relatively small, approximately one-sixth the mass of the Earth’s Moon and one-third its volume. It has an eccentric and highly inclined orbit that takes it from 30 to 49 AU (4.4–7.4 billion km) from the Sun. This causes Pluto to periodically come closer to the Sun than Neptune. Pluto gets as close as 4.44 billion km.
But its orbit is so elliptical that it gets out to a distance of 7.38 billion km. In fact, there are times in Pluto’s orbit when Neptune passes it. Then Neptune really is the farthest planet from the Sun.
IMPORTANT indian geography mcq EXERCISES
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Top 499+ Solar System And Universe Geography MCQ For UPSC »
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Top 500+ Astronomy Geography GK MCQs Quiz For SSC Exams »
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555+ Universe, Solar System & Astronomy MCQs Test & Quiz »
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New 499+ Universe, Solar System & Astronomy MCQ Live Test »
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Top 500+ Universe and Solar System MCQs Quiz For SSC MTS »
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Top 499+ Universe & Space GK MCQs Quiz For IBPS SBI Exams »
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New 499+ Solar system and Astronomy MCQs Quiz For SSC CGL »
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Top 499+ Solar System, Universe & Astronomy MCQ Live Test »
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indian geography mcq CATEGORIES
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» Nature & Scope of Geography
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» Universe, solar system and Astronomy
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» Geomorphology & Earth landforms
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» Atmosphere & Climatology
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» Hydrosphere & Oceanography
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» Pedology or Soil & Agriculture
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» Ecology & Bio geography
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» World Physical Geography
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» World Human Geography (Population)
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» World Economic Geography (Industry, Trade, Transportation & Agriculture)
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» World Country, Capital, Area, Currency, Parliament, Religion, New & old name of country
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» Physiography & Geomorphology of India
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» Indian Drainage, Irrigation and Rivers & River Projects
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» Indian Climate
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» Ecology, Environment, Forest, Naturals vegetations of India & National Park of India
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» Indian Agriculture & Animal Husbandry
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» Minerals & Energy Resources of India
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» Industries & Trade in India
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» Transportation & Ports System of India
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