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 proposed the theory of the expanding universe?
- Georges Lemaitre
- Galileo Galilei
- Edwin Hubble
- Claudius Ptolemy
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.
Who prepared the manuscript of the Constitution of India?
- Shantiniketan
- Nandlal Bose
- Dr. B R Ambedkar
- Prem Behari Narain Raizada
Prem Behari Narain Raizada was an Indian calligrapher. He is notable for being the calligrapher who hand-wrote the Constitution of India.
Which one is not the Component of the Preamble?
- Sovereign
- Secular
- Hostility
- Democratic Republic
The preamble declares India to be a sovereign, socialist, secular, and democratic republic. The objectives stated by the Preamble are to secure justice, liberty, and equality for all citizens and promote fraternity to maintain the unity and integrity of the nation.
The nature of the Indian Constitution-
- Unitary
- Federal
- Quasi Federal System
- Parliamentary
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.
