OUR ENVIRONMENT CLASS 6 ENVIRONMENT IS MADE FROM
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OUR ENVIRONMENT- CLASS 6 • ENVIRONMENT IS MADE FROM FRENCH WORD ENVIRON WHICH MEANS SURROUNDS. • ENVIRONMENT IS OUR SURROUNDING. IT HAS TWO COMPONENTSENVIRONMENT BIOTIC COMPONENT PLANTS, ANIMALS, MICROBES LIGHT, SOIL ABIOTIC WATER, AIR, TEMPERATURE,
BIOTIC COMPONENTS • PLANTS ARE PRODUCERS OR AUTOTROPHS AS THEY PREPARE FOOD BY PHOTOSYNTHESIS. THEY HAVE CHLOROPHYLL WHICH TRAP SUNLIGHT AND USE CARBONDIOXIDE AND WATER TO MAKE FOOD. • ANIMALS ARE PRODUCER OR HETEROTROPHS AS THEY DEPEND ON OTHERS FOR FOOD. THEY ARE CLASSIFIED AS ---- HERBIVORES CARNIVORES AND OMNIVORES • MICRO ORGANISMS ARE CALLED DECOMPOSERS AS THEY GET FOOD FROM DEAD AND DECAYING MATTER, THEY HELP IN MINERAL CYCLE.
BIODEGRADABLE AND NONBIODEGRADABLE • BIODEGRADABLE MATERIALS ARE MATERIALS WHICH CAN BE DECOMPOSED BY MICRO ORGANISMS. EXAMPLE—PAPER , CLOTH ETC. • NONBI 0 DEGRADABLE MATERIALS ARE MATERIALS WHICH CANT BE DECOMPOSED BY MIRO ORGANISMS. EXAMPLE– PLASTIC, GLASS ETC. • BIODEGRADABLE AND NONBIODEGRADABLE WASTES SHOULD BE SEGREGATED FOR PROPER DISPOSAL. • SOME BIODEGRADABLE WASTES CAN BE CONVERTED INTO COMPOST LIKE KITCHEN WASTES. • WORMS ARE USED TO HASTEN THE PROCESS OF COMPOSTING. IT IS CALLED VERMICOMPOSTIMG
ABIOTIC COMPONENTS • WATER IS NECESSARY FOR ALL LIVING THINGS. IT IS USED FOR DIFFERENT PURPOSES. • RAIN WATER HARVESTING IS A WAY TO COLLECT RAIN WATER FOR REUSE IN FUTURE.
AIR AND LIGHT • AIR IS MIXTURE OF GASES. MAIN GASES PRESENT IN AIR ARE OXYGEN, NITROGEN, CARBONDIOXIDE. LIVING THINGS USE OXYGEN FOR RESPIRATION. PLANTS USE CARBON DIOXIDE FOR PHOTOSYNTHESIS. • SUN IS THE MAIN SOURCE OF LIGHT. PLANTS AND ANIMALS RESPOND TO LIGHT IN DIFFERENT WAYS. • MORNING GLORY BLOOMS WITH SUNRISE , SUNFLOWER ALWAYS FACES THE SUN.
TEMPERATURE AND SOIL • TEMPERATURE IS MEASURE OF HOTNESS AND COLDNESS. • TEMPERATURE AFFECTS ACTIVITIES OF LIVING ORGANISMS. BUFFALOES CANNOT TOLEREATE HIGH TEMPERATURE AS THEY ARE BLACK IN COLOUR AND DON’T HAVE EFFICIENT SWEAT GLANDS. • CAMEL CAN TOLERATE HIGH TEMPERATURE. THEY CAN LIVE WITHOUT WATER FOR MANY DAYS. • POLAR BEAR AND PENGUINS ARE FOUND IN COLD REGION. • SOIL IS ALSO IMPORTANT ABIOTIC FACTOR REQUIRED FOR GROWTH OF PLANTS.
INTERACTION IN ENVIRONMENT • PLANTS AND ANIMALS ARE INERDEPENDENT IN THEIR RELATIONSHIP. • FOOD CHAIN IS A SERIES OF ORGANISMS INTER-REALTED SEQUENCLY , VIA THEIR FOOD. This Photo by Unknown Author is licensed under CC BY-SA-NC
MINERAL CYCLE • THE CYCLING OF MATERIAL THROUGH BIOTIC AND ABIOTIC COMPONENTS IS CALLED MINERAL CYCLE.
BALANCE BETWEEN OXYGEN ANDS CARBON DIOXIDE
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