Introduction - Concepts - Chapter 1 Class 7 Geography - Our Environment - Geography

Introduction

• Environment : all the external conditions in which the organism lives
  
  
• Comes from French word environer, meaning to surround
  
  
• Includes natural and human-made elements.
  
  
• Geography: studies the components and interrelationship of environment

Natural Environment

• Created by nature, such as mountains, rivers, vegetation, animals, etc.
  
  
• Includes biotic (living) and abiotic (non-living) components
  
  
• Changes due to natural processes and human activities

Human-made Environment

• Created by human beings, such as agriculture, industries, settlements, transport, etc.
  
  
• Developed to live comfortably in the environment
  
  
• Changes due to human activities and natural processes

Interaction of Environments

• Natural and human-made environments affect each other
  
  
• Examples of changes:
• Landforms are modified by erosion, deposition, construction, etc.
  
  
• Climate varies in different seasons and regions
  
  
• Species of plants and animals become extinct or evolve
  
  
• Human evolution was influenced by environmental changes