STD 7 SECOND PERIODICAL TEST SOCIAL SCIENCE SUBJECT
Social science may be a branch of science that deals with human behavior in its social and cultural aspects. this subject explains how our own society works - causes unemployment or helps economic process , how and why people vote, or what makes people happy. It provides important information for governments and policy makers, local authorities, non-governmental organizations et al. .
The textbooks of Gujarat Board of Secondary and better education are designed by material experts who have in-depth knowledge of the topic . GSEB Class 7 textbooks of social sciences are a compilation of subjects associated with history, geography and civics. it's presented during a well-structured format, consistent with the problem level of the concepts. At the top of every chapter, practice questions are provided in order that students are complete with their concepts. Textbook class 7 follows GSEB syllabus of social sciences.
All plants, animals and humans depend upon their immediate surroundings. they're also hooked in to one another . This relationship between living organisms and therefore the surrounding ecosystem forms an ecosystem.
The natural environment includes land, water, air, plants and animals. Thus, the natural environment refers to both biological (plants and animals) and abiotic (soil) conditions that exist on Earth.
The main components of the environment - natural (land, air, water, living things), man-made (buildings, parks, bridges, roads, industries, monuments, etc.) and human (individual, family, community, religion, educational), economic, etc.) .
Four samples of man-made environment: buildings, parks, bridges and roads.
The lithosphere may be a solid crust or the hard top layer of the world . it's made from rocks and minerals and is roofed with a skinny layer of soil. it's an irregular surface with various land forms like mountains, plateaus, plains, valleys, etc.Plants and animals are the 2 main components of the biological environment,
The biosphere may be a narrow zone of the world where land, water and air interact with one another to support life. Thus, the plant and animal kingdoms together form the biosphere, that is, the living world.
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From the start citizenry interact with the environment and alter it consistent with their needs. Early humans adapted to the natural environment. They lived an easy life and met the requirements of the character around them. But their needs kept growing. They also became diverse. to satisfy these diverse needs, humans learned to grow crops, control animals, and lead stable lives. Wheels were invented, surplus food was produced, barter systems emerged, trade began and commerce flourished. the economic Revolution made production possible. By and transport became faster. the knowledge revolution made communication round the world easier and faster. during this way humans adapted to the environment to satisfy their needs.
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