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.
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.
What type of economy is followed in India?
- Traditional Economy: Economic system based on goods, services, and work, all of which follow certain established trends.
- Command Economy: A dominant centralized authority – usually the government – that controls a significant portion of the economic structure.
- Market Economy: Economic system based on the concept of free markets.
- Mixed Economy: Economic system that combine the characteristics of the market and command economic systems.
×
A mixed economic system is a system that combines aspects of both capitalism and socialism. This means that some industries are controlled by private businesses and individuals, while other industries are controlled by the government.
Which of the following activities is also referred to as the 'Gold Collar' profession?
- Primary
- Secondary
- Quinary
- Quaternary
×
Quinary activities are services that focus on the creation, re-arrangement, and interpretation of new and existing ideas; data interpretation, and the use and evaluation of new technologies. Gold Collar Worker: Refers to highly-skilled knowledgeable people such as doctors, lawyers, scientists, and also young, low-wage workers who also get parental support.
What was the comparative advantage theory of David Ricacrdo?
- When a country can produce a good or service at a lower opportunity cost than another country.
- Pursuit of self-interest, division of labor, and freedom of trade.
- A theory of free-market capitalism directly opposed to government intervention.
- A theory centers on entrepreneurship, knowledge, innovation and technological advancement.
×
Comparative advantage is an economy's ability to produce a particular good or service at a lower opportunity cost than its trading partners.
