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.
Fundamental Rights are described in which articles of Indian Constitution?
- Article 12 to 35
- Article 14 to 32
- Article 14 to 35
- Article 12 to 32
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Article 12 to 35 contained in Part III of the Constitution deals with Fundamental Rights.
People who regularly move in and out of poverty (for example small farmers and seasonal workers). The occasionally poor are rich most of the time but may sometimes have a patch of bad luck are called ______
- Chronic poor
- Churning poor
- Transient poor
- Non-poor
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The churning poor are the people who go in and out of poverty (for example, small farmers and seasonal workers).
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."
Who proposed the theory of the expanding universe?
- Georges Lemaitre
- Galileo Galilei
- Edwin Hubble
- Claudius Ptolemy
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American astronomer Edwin Hubble discovered in the 1920s that the Universe is expanding by showing that most galaxies are receding from the Milky Way and the farther away they are, the faster they are receding.
