Why does a star produce its own light and heat?
- Nuclear fission
- Nuclear fusion
- Chemical reaction
- None
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.
Who introduced the term state for the first time?
- Karl Marx
- Machiavelli
- Rousseau
- Jean Bodin
The term ‘State’ in its modern sense was first used by Machiavelli. The State consists of four elements. These are (a) the people; (b) the territory; (c) the government and (d) sovereignty.
In case a State emergency is declared, it needs Parliamentary approval after every _____.
- 6 months
- 1 year
- 2 years
- 3 years
State emergency is imposed for an initial period of six months and can last for a maximum period of three years with repeated parliamentary approval every six months.
Who proposed the steady-state theory?
- Hermann Bondi
- Thomas Gold
- Sir James Jeans
- Fred Hoyle
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.
What does republic mean in the Indian Constitution?
- India is a Union of States
- The head of state is elected by people
- People have final authority in all the matters
- India has parliamentary system of government
'Republic' is a State in which supreme power is held by the people and their elected representatives. It has an elected head of state rather than a monarch.
