Topics
Our Earth and Our Solar System
Motions of the Earth
The Earth and Its Living World
Environmental Balance
Family Values
Rules Are for Everyone
Let Us Solve Our Own Problems
Public Facilities and My School
Maps - Our Companions
Getting to Know India
Our Home and Environment
Food for All
Methods of Preserving Food
Transport
Communication and Mass Media
Water
Clothes - Our Necessity
The Environment and Us
Constituents of Food
Our Emotional World
Busy at Work - Our Internal Organs
Growth and Personality Development
Infectious Diseases and How to Prevent Them
Substances, Objects and Energy
Community Health and Hygiene
- Introduction of Environmental Balance
- The Need to Maintain Environmental Balance
Maharashtra State Board: Class 5
Introduction of Environmental Balance:
Food chains provide food for all living things, ensuring their survival. Soil microorganisms help decompose plant residue, dead animals, and excreta, forming substances beneficial for plant growth.
- The decomposition of remains adds these substances to the soil, a crucial environmental cycle. The water cycle ensures a continuous supply of water for living things.
- Oxygen exchange between living and nonliving things is a natural cycle, with oxygen released for breathing and carbon dioxide added for food production.
- Continuous interaction among living and nonliving things maintains food chains and environmental balance.

Food Chain

Water Cycle
Maharashtra State Board: Class 5
The Need to Maintain Environmental Balance:
- Human activities have caused significant changes in the air, water, and land, leading to pollution of these abiotic components (air, water, and land). This pollution poses a serious threat to the survival of living organisms, with many species already becoming extinct.
- When one part of the environment is damaged, it disrupts the balance and affects the relationships between other factors.
- Although species have gone extinct throughout history, this process is now happening much more rapidly, creating a serious danger for all life on Earth.
