Share & grow the world's knowledge!
We want to connect the people who have knowledge to the people who need it, to bring together people with different perspectives so they can understand each other better, and to empower everyone to share their knowledge.
What are the sources of energy that are required to cause movements associated with the internal forces of the Earth?
The movements associated with the Earth's internal forces are mainly powered by heat energy from the Earth's interior. This heat comes from the Earth's formation and the radioactive decay of elements inside the Earth. It creates convection currents in the mantle, which move tectonic plates and leadRead more
The movements associated with the Earth’s internal forces are mainly powered by heat energy from the Earth’s interior. This heat comes from the Earth’s formation and the radioactive decay of elements inside the Earth. It creates convection currents in the mantle, which move tectonic plates and lead to earthquakes, volcanic eruptions, and mountain building.
Read the complete step-by-step solutions here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/social-science/chapter-2/
Why should we study Social Science?
Social Science helps us understand the systems (roads, schools, markets, digital spaces) that shape our daily lives. It explains why differences in language, customs, and occupation exist and helps us recognise the underlying unity within diversity. It also prepares us to participate responsibly inRead more
Social Science helps us understand the systems (roads, schools, markets, digital spaces) that shape our daily lives. It explains why differences in language, customs, and occupation exist and helps us recognise the underlying unity within diversity. It also prepares us to participate responsibly in civic life, think critically about shared challenges like environment and employment, and connects the past, present, and future to help us make wiser choices.
📌 For more detailed solutions, you can also check:https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/chapter-1/
See lessWhat sources does History use to study the past?
History writing draws on archaeological and literary traditions such as travelogues, memoirs, correspondence, genealogical records, folklore and oral traditions, and revenue documents. Archaeological sources include monuments, architectural structures, excavated sites, artefacts, objects, and art suRead more
History writing draws on archaeological and literary traditions such as travelogues, memoirs, correspondence, genealogical records, folklore and oral traditions, and revenue documents. Archaeological sources include monuments, architectural structures, excavated sites, artefacts, objects, and art such as sculptures and paintings, often analysed using scientific instruments and laboratory testing.
Want a step-by-step solution? Check here: https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/chapter-1/
See lessUsing the example of a drought, explain why Social Science is studied through multiple disciplines.
A drought affects crops (environment), farmers' incomes (economy), government relief measures (politics), migration to cities (society), and traditional ways of coping with scarcity (culture). To understand such situations, we must examine society from different perspectives. This is why Social ScieRead more
A drought affects crops (environment), farmers’ incomes (economy), government relief measures (politics), migration to cities (society), and traditional ways of coping with scarcity (culture). To understand such situations, we must examine society from different perspectives. This is why Social Science is not a single subject but a group of related disciplines that together provide a comprehensive understanding of society.
Find all detailed solutions for this chapter: https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/chapter-1/
See lessWhat are Epigraphic and Numismatic sources? Give one example of each.
An Epigraphic Source is a historical source consisting of texts, decrees, or records inscribed on durable materials such as stone, metal plates, or rock surfaces, providing direct evidence about past events, rulers, administration, and society (e.g., the Brahmi inscription from the Gupta period). ARead more
An Epigraphic Source is a historical source consisting of texts, decrees, or records inscribed on durable materials such as stone, metal plates, or rock surfaces, providing direct evidence about past events, rulers, administration, and society (e.g., the Brahmi inscription from the Gupta period).
A Numismatic Source is a historical source comprising coins, currency, or medals, which helps historians study the economy, chronology, rulers, trade, and culture of a civilisation (e.g., a coin issued by King Samudragupta).
Read the complete step-by-step solutions here: https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/chapter-1/
See less