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There are repeated patterns of change in nature. Examples of these cycles are the life cycles of living things and Earth’s natural cycles. Understanding these cycles helps Man to predict events and processes and to appreciate the Earth as a self-sustaining system.
章節
- Cycles
- The Snowman’s Origin
- The Importance Of Rain
- Sunrise And Sunset
- The Moon Had Vanished
- How Do Plants Disperse Their Seeds ?
- The Viviparous Red Mangrove
- Coffee From Civet Cat’s Dung
- The Wonders Of Toothpaste
- The Bacteria Killer
- Uses Of Eggshells
- Dead Leaves Are Valuable
- Fuel From Watermelon Juice ?
- Experiments On Sugar Cane Bagasse
- Paper From Elephant Dung ?
- Clothes From Chicken Feathers ?
- Environmentally Friendly Red Worms
- Amazing Bio Energy Biodiesel
- Cars That Do Not Use Petrol
- Do Goats Climb Trees ?
- Gone ?