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 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.
Who is called the father of macroeconomics?
- Alfred Marshall
- John Maynard Keynes
- Adam Smith
- Leon Walras
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Macroeconomics as a modern discipline began with the publication of John Maynard Keynes's General Theory of Employment, Interest, and Money where he offered a new theory of economics that evolved into Keynesian economics.
The nature of the Indian Constitution-
- Unitary
- Federal
- Quasi Federal System
- Parliamentary
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Indian constitution is federal in form and unitary in spirit. The meaning of the quasi-federal system is both federal and unitary. In Unitary Constitution the supreme governing authority of a state is concentrated in a single place(Central Government). In this constitution, the supreme power is divided between the central and state government, and both governments are independent in their domain.
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.
