OUR ENVIRONMENT
All the living things and objects around us make our environment!
Natural World
Includes forests, rivers, and wild animals that exist in nature.
Man-Made World
Includes roads, bridges, and cities built by humans.
Survival Essentials
Living things need these 5 items to survive in the environment!
Food
Animals take food for energy. Plants make their own!
Habitat
The special place where plants grow and animals live.
Shelter
A safe place for protection from predators and harsh weather.
Water
No living thing can survive without it!
Air
Plants use CO2; animals and plants use Oxygen for breathing.
How Plants
Make Food
Most plant food (carbohydrates) is produced in their **leaves** using roots to absorb water!
The Growth Experiment
Energy Passing Through Food
"The prime source of energy is the sun!"
The Sun
Prime source
Plants
Produce food
Animals
Eat plants
Humans
Final link
Energy flows into plants while producing food and transfers into animal bodies when they consume vegetative parts.
Energy Chain Master
Energy flows from the Sun through everything we eat!
Forest Chain
Farm Chain
Water Chain
The Prime Source Rule
"Plants get energy from sunlight while making food. Then, energy is transferred when animals consume plants or vegetative parts!"
Environmental Change
🌪️ Natural Disasters
Drought, flood, storm, and earthquake change the environment and damage habitats.
🪓 Human Activities
Humans cut down trees for fuel, fill up water bodies (haors/bills), and build unplanned roads.
🌡️ Climate Change
Resulting temperature rise, untimely rainfall, and extreme weather.
The Climate Change Effect
Changes cause temperature rise and climate change
- ⚠️ Untimely rainfall or drought
- ⚠️ Tidal surges and salinity
- ⚠️ Flood and habitat damage