Our environment dhaval and sameep
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The document defines key terms about the environment including the physical surroundings like air and water that make up the environment, as well as the organisms that live within it. It notes that while all components of the environment interact naturally, human activities are increasingly damaging the balance. It also distinguishes between biodegradable wastes that can breakdown naturally and non-biodegradable wastes that cannot. Food chains and webs are explained as the network of relationships between species within an ecosystem, with producers, consumers and decomposers. The document concludes with emphasizing the importance of reducing waste, reusing materials, and recycling to help preserve the environment.
Our environment dhaval and sameep
- 2. What is Environment The physical and biological world where we live is called our environment. The physical surroundings includes air (or atmosphere), water bodies, soil (land).
- 3. Biological includes all the organisms such as plants, animals, human beings and micro-organisms like bacteria and fungi (called decomposers). All these constituents of the environment are depend on one another. So all the constituent of environment interact with one another and maintain a balance in the environment in a natural way.
- 5. Human beings are the only organisms who change the natural environment to fulfill their needs. In fact, the uncontrolled activities of human beings are damaging the balanced and healthy environment more am more.
- 6. Biodegradable And Non-biodegrable Waste Those waste materials which can be broken down to non-poisonous substances in nature by the action of microorganism like bacteria. Cattle dung and compost are common e.g. of biodegradable waste.
- 7. Waste materials which cannot be broken down into non-poisonous or harmless substances in nature are called non-biodegradable wastes. e.g. are plastic bags, metal articles, synthetic fibers etc.
- 8. Ecosystem Natural Ecosystem forests ponds, lakes Artificial Ecosystem garden, crop field Ecosystem
- 10. • Biotic: Living components of an ecosystem such as animals & plants are called biotic. • Abiotic: Non-living components of an ecosystem such as land, water & air are called abiotic.
- 11. Producers, Consumers, Decomposers. Producers chlorophyll Consumers herbivores carnivores Decomposers food chain omnivores, parasites
- 12. FOOD CHAIN • The above energy pyramid shows many trees & shrubs providing food and energy to giraffes. Note that as we go up, there are fewer giraffes than trees & shrubs and even fewer lions than giraffes ... as we go further along a food chain, there are fewer and fewer consumers. In other words, a large mass of living things at the base is required to support a few at the top ... many herbivores are needed to support a few carnivores.
- 13. • Most food chains no more than have four or five l inks.
- 14. Food Web The inter-connected food chains operating in an ecosystem which establish a network of relationship between various species is called a food web. The food web has many intercrosses and linkages among the various species (producers and consumers) present in it. They operate in the form of a network of food chain.
- 16. The Three R’s To Save the Environment Reduce Reduce means that we use less of the natural resource by cutting down on those practices which lead to their wastage. For e.g. we can reduce the wastage of electricity by switching of unnecessary light & fans. Saving electricity means we are saving the use of coal because coal is used to produce electricity.
- 17. Recycle Recycling means that we should collect the used and discarded items of paper, plastic, glass etc. in order to recycle materials we should first segregate our domestic waste properly so that materials which can be recycled do not get dumped along with other household wastes which are to be thrown away.
- 18. Reuse Reuse means we should use the same things again. For e.g. the plastic jars in which we buy various food items like jams and pickles etc. can be used later on for storing things like salt, spices, sugar, tea leaves etc. The process of reuse is better than that of recycling because energy is used to recycle old objects.
- 19. Plastic recycling • Plastic recycling is the process of recovering scrap or waste plastics and reprocessing the material into useful products, sometimes completely different in form from their original state. • For instance, this could mean melting down soft drink bottles and then casting them as plastic chairs and tables.
- 20. Ways to reduce plastic use Bring your own cloth bags to the grocery store (or any store!). Don't buy convenience foods packages in plastic. Use rechargeable batteries to reduce buying batteries Segregate waste into dry & wet garbage. packaged in plastic.
- 21. Preserve environment !!! • Proper collection of garbage & converting into manure. • Use CNG gas in vehicles. • Reduce pollution. • Awareness through Documentaries /newspapers Afforestation Proper disposal of factory waste & non biodegrable waste. Less usage of pesticides, fertilizers. Ban plastic bags & use paper bags.
- 23. Thank you Made By: Dhaval AND SAMEEP