20% of Earth’s oxygen is produced by the Amazon rainforest

Our atmosphere is made up of roughly 78 per cent nitrogen and 21 per cent oxygen, with various other gases present in small amounts. The vast majority of living organisms on Earth need oxygen to survive, converting it into carbon dioxide as they breathe. Thankfully, plants continually replenish our planet’s oxygen levels through photosynthesis. During this process, carbon dioxide and water are...

The Eiffel Tower can be 15 cm taller during the summer

When a substance is heated up, its particles move more and it takes up a larger volume – this is known as thermal expansion. Conversely, a drop in temperature causes it to contract again. The mercury level inside a thermometer, for example, rises and falls as the mercury’s volume changes with the ambient temperature. This effect is most dramatic in gases but...

Babies have around 100 more bones than adults

Babies have around 100 more bones than adults Babies have about 300 bones at birth, with cartilage between many of them. This extra flexibility helps them pass through the birth canal and also allows for rapid growth. With age, many of the bones fuse, leaving 206 bones that make up an average adult skeleton.

Sociology Class XII Syllabus

Sociology Class XII Syllabus Exam Structure Unit Topic Marks A. Indian Society 32 1  Introducing Indian Society (Non-evaluative) -  2  Demographic Structure & Indian Society 6 3  Social Institutions-Continuity and change 6  4  Market as a Social Institution 6  5  Pattern of Social Inequality and Exclusion 6  6  Challenges of Cultural Diversity 8  7  Suggestions for Project Work (Non-evaluative) -  B. Change and Development in Indian Society 48  8  Structural Change 6  9  Cultural Change 6  10  The Story of Democracy 6  11  Change and Development in Rural Society 6  12  Change and Development in Industrial Society 6  13  Globalization and Social Change 6  14  Mass Media and Communications 6  15  Social Movements 6    Total 80 A. INDIAN...

Psychology Class XII Syllabus

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Political Science Class XII Syllabus

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Mathematics Class XII Syllabus

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