Class - 9, Chapter - 3, Atmosphere & Climate Quiz

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Atmosphere & Climate Competency Quiz

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Class - 9 Social Science Part - 2 Goyal Prakashan

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Class - 9 Social Science Part - 2  Goyal Prakashan   Chapter 1: Water in the Oceans Chapter - 2 Disaster Preparedness and Regulatory Frameworks Chapter 3: Forests, Biodiversity and Livelihoods Chapter 4 Theme III: Building a Resilient India (1000–1700 CE) Early Medieval India (750–1000 CE) Chapter 5: Later Medieval India Chapter - 6, Theme IV : India and the World – I (1900 BCE – 1200 CE) Chapter 7 Understnding Authority Chapter - 8 Theme IV: From Ideas to Startups Entrepreneurship and Startups Chapter - 9 - financial planning investment and taxation. Class - 9 Worksheet Part 1 & Part 2
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Chapter - 3 The Dynamic Atmosphere and Changing Climate (Class- 9) (GOYAL PRAKASHAN)

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Chapter - 3   The Dynamic Atmosphere and Changing Climate What is Atmosphere:-  The atmosphere is a layer of gases that surrounds the Earth. It is made up of gases like Nitrogen (78%), Oxygen (21%), and small amounts of Carbon dioxide, Argon, and Water vapour. It protects life on Earth and makes it possible for living organisms to survive. Why is the Atmosphere Important:-  The atmosphere plays a very important role: Provides Oxygen – Needed for breathing by humans and animals. Supports Life – Plants use carbon dioxide for photosynthesis. Protects Earth – Shields us from harmful rays of the Sun. Maintains Temperature – Keeps Earth warm enough for life (greenhouse effect). Weather Formation – Clouds, rain, wind, and storms happen in the atmosphere. What is Climate:-  Climate is the average weather condition of a place over a long period of time (years or decades). It includes temperature, rainfall, humidity, and wind patterns. Importance of Climate Affects Agricu...
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Chapter - 4 The Stone Age – The Earliest People (GOYAL PARKASHAN)

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 Chapter - 4 The Stone Age – The Earliest People Who were the Earliest People? The earliest humans lived millions of years ago. They are known as hunter-gatherers. They depended on nature for food (hunting animals and gathering fruits, roots, seeds). They lived in caves, rock shelters, or under trees. They had no permanent homes and moved from place to place (nomadic life). Features of Early Humans Use of Stone Tools – For cutting, hunting, and protection Discovery of Fire – Used for cooking, warmth, and safety Group Living – For protection from wild animals No Farming – They did not grow crops initially Simple Life – No writing, no permanent houses Division of the Stone Age The Stone Age is divided into three main periods: 1. Palaeolithic Age (Old Stone Age) Time: About 2 million years ago to 10,000 BCE People used rough, unpolished stone tools Lived in caves and were completely dependent on nature Main activities: Hunting and gathering Discovery of fire Example sites: Bhimbetka (...
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Chapter 2 Shaping of the Earth (GOYAL PRAKASHAN)

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Chapter 4: Early Humans and Beginning of Civilisation | NCERT Notes, MCQs & Important Questions (CBSE 2026–27)

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 Class 9 – Chapter 4: Early Humans and Beginning of Civilisation 1. Introduction Human history began millions of years before writing. History before writing is called Prehistory. Knowledge comes mainly from archaeological evidence. Earliest writing systems: Harappan Script (undeciphered) Cuneiform (Mesopotamia) Hieroglyphics (Egypt) Keywords Prehistory Archaeology Harappan Script Cuneiform Hieroglyphics Brahmi Script 2. Why Study Early Human History?  Early human history helps us understand the long process of humankind's biological and cultural evolution in relation to changes in climate and the environment. Biological Evolution:-   It refers to the gradual physical and genetic changes through early ancestors. Early ancestors known as australopithecines ( australis means souther and pithecus is primates) Physical development from early ancestors to Homo sapiens. Cultural Evolution:- It refers ow human adapted to their surrounding during the Quaternary Period. Developmen...
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