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.
Who is considered as the father of economics?
- Alfred Marshall
- Adam Smith
- David Ricardo
- Esther Duflo
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Adam Smith was an 18th-century Scottish philosopher. He is considered the father of modern economics. He published “The Wealth of Nations” in 1776.
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).
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.
