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.
Why does a star produce its own light and heat?
- Nuclear fission
- Nuclear fusion
- Chemical reaction
- None
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Stars are huge celestial bodies made mostly of hydrogen and helium. Heat and light energy produced by the stars are due to the fusion reaction of hydrogen atoms.
Which article if the Indian Constitution abolishes untouchability?
- Article 30
- Article 17
- Article 19
- Article 21
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Abolition of Untouchability. To make an untouchability law further strong, parliament passed an Untouchability Offenses Act in 1955. However, this act was further amended and also renamed in the year of 1976 as Protection of the Civil Rights Act, 1955.
_______ is the study of the behavior of individuals and firms in making decisions such as consumers, resource owners, and firms.
- Macroeconomics
- Neo-classical economics
- Microeconomics
- Monetarist economics
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Microeconomics is the study of the behavior of individuals and firms in making decisions such as consumers, resource owners, and firms.
Name the branch of astronomy that involves the origin and evolution of the universe.
- Cosmology
- Meteorology
- Petrology
- Orology
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Cosmology is "the scientific study of the large-scale properties of the universe as a whole."
