Name the branch of astronomy that involves the origin and evolution of the universe.
- Cosmology
- Meteorology
- Petrology
- Orology
Cosmology is "the scientific study of the large-scale properties of the universe as a whole."
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.
Who has the power to create new states?
- Parliament of India
- Chief Justice of India
- Governor
- State legislatures
Article 3 assigns to Parliament the power to enact legislation for the formation of new States. Parliament may create new States in a number of ways, namely by (i) separating the territory from any State, (ii) uniting two or more States, (iii) uniting parts of States, and (iv) uniting any territory to a part of any State.
What Are Constellations?
- A group of stars that appears to form a pattern or picture
- Small chunks of ice and rock come from the outer edge of the solar system
- Collection of billions of stars
- Small irregularly shaped rocks made up of metal or minerals
A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived pattern or outline.
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.
