What Are Constellations?
- A group of stars that appears to form a pattern or picture
- Small chunks of ice and rock come from the outer edge of the solar system
- Collection of billions of stars
- Small irregularly shaped rocks made up of metal or minerals
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A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived pattern or outline.
Name the economist who gave the theory of “Comparative Advantage.”
- Adam Smith
- David Ricardo
- Thomas Robert Malthus
- Amartya Sen
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David Ricardo was a classical economist best known for his theory on wages and profit, the labor theory of value, the theory of comparative advantage, and the theory of rents.
In which of these constellations does the current Pole Star, Polaris, lie?
- Ursa Minor
- Orion
- Ursa Major
- Corona Borealis
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Ursa Minor, or the 'Little Bear', is a relatively conspicuous constellation, visible from the latitudes 90 degrees North to 10 degrees South. It is 'circum-polar', i.e. always visible in the sky, above 20 degrees North latitude.
Who proposed the steady-state theory?
- Hermann Bondi
- Thomas Gold
- Sir James Jeans
- Fred Hoyle
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The steady-state theory was first proposed by Sir James Jeans in the 1920s, but it was reformulated by Fred Hoyle, Thomas Gold, and Hermann Bondi in 1948.
Which theory explains the origin of the universe?
- Geocentric Model
- Heliocentricity
- Big Bang Theory
- Pulsating Theory
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The Big Bang was 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded.
