universe & solar system section 4 Practice Questions Answers Test with Solutions & More Shortcuts
Universe, solar system and Astronomy PRACTICE TEST [13 - EXERCISES]
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Question : 36
The eclipse of the Sun occurs
a) when the Sun comes between the Earth and Moon.
b) None of these
c) when the Earth comes between the Sun and Moon.
d) when the Moon comes between the Sun and the Earth.
Answer »Answer: (d)
The eclipse of the Sun occurs when the Moon comes between Sun and the Earth. The Moon orbits the Earth once a month, and eclipses happen if it lines up exactly with the Earth and the Sun. Solar eclipses occur at New Moon when the Moon is between Earth and the Sun.
Lunar eclipses occur at Full Moon when Earth is between the Sun and the Moon. Eclipses do not take place every month because the orbits of the Moon and Earth are tilted at an angle. Most of the time, the line-up is not precise enough for an eclipse.
Question : 39
Which of the following is not an effect produced by rotation of earth?
- All heavenly bodieslike sun, moon and planets appears to move from East to West.
- Winds change their directions.
- Poles have days and nights of 6 months duration.
a) 3 only
b) 1, 2 and 3
c) 2 only
d) 1 only
Answer »Answer: (a)
The North and South poles have either no night for around six months of the year during summer, or complete night for six months of the year during winter.
This is because, during summer, the sun is basically permanently above the horizon for half of the year, due to the tilt of the earth on its axis. If the earth were positioned upright with the poles in a vertical position, then the North and South Poles would have daytime and night time separated by light and darkness, just like the rest of the planet.
However, because it is tilted and rotates around the sun's energy for six months one pole or the other has to always be in the shadow.
Question : 40
Which of the following planets is called “Blue planet”?
a) Uranus
b) Mercury
c) Earth
d) Venus
Answer »Answer: (c)
Earth is called the ‘Blue Planet’ due to the abundant water on its surface. This is because liquid water covers most of the surface of the planet. The Earth has the right mass, chemical composition, and location can support liquid water.
IMPORTANT indian geography mcq EXERCISES
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Universe, solar system and Astronomy Shortcuts »
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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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