Class 10 Exam  >  Class 10 Notes  >  PPTs for Class 10  >  PPT - Our Environment

Our Environment Class 10 PPT

Download, print and study this document offline
Please wait while the PDF view is loading
 Page 1


1. Effect of adding waste to the environment :-    Human activities produce a lot of waste materials which are thrown away into the environment. These wastes cause pollution of air, water and soil.   The waste materials produced are of two main types. They are biodegradable wastes and non biodegradable wastes. i) Biodegradable wastes :- are wastes which are decomposed into harmless substances by microorganisms.    Eg :- vegetables, fruits, pulses, cereals, cotton, jute, wool, wood,  leather, paper, animal dung, animal bones etc. ii) Non biodegradable wastes :- are wastes which are not decomposed by microorganisms.    Eg :- polythene bags, plastics, synthetic fibres, glass, metals, synthetic rubber, insecticides, pesticides etc.  
Page 2


1. Effect of adding waste to the environment :-    Human activities produce a lot of waste materials which are thrown away into the environment. These wastes cause pollution of air, water and soil.   The waste materials produced are of two main types. They are biodegradable wastes and non biodegradable wastes. i) Biodegradable wastes :- are wastes which are decomposed into harmless substances by microorganisms.    Eg :- vegetables, fruits, pulses, cereals, cotton, jute, wool, wood,  leather, paper, animal dung, animal bones etc. ii) Non biodegradable wastes :- are wastes which are not decomposed by microorganisms.    Eg :- polythene bags, plastics, synthetic fibres, glass, metals, synthetic rubber, insecticides, pesticides etc.  2. Ecosystem and its components :- a) Ecosystem :-    An ecosystem consists of all the living organisms in an      area along with the non living components and their interaction.     There are different types of ecosystems. They are :-  i) Natural ecosystems  :- like forests, deserts, grass lands, mountains,      ponds, lakes, rivers, oceans etc.  ii) Artificial ecosystems :- like gardens, parks, crop fields, aquarium, zoo etc. b) Components of an ecosystem :-     An ecosystem consists of two main components. They are biotic and abiotic      components. i) Biotic components :- are the living components like plants, animals and     microorganisms. They consist of producers, consumers and decomposers.    Producers  :- are green plants which produce food by photosynthesis.    Consumers :- are herbivores which get their food directly from plants,     carnivores which get their food indirectly from plants and omnivores which     get their food directly or indirectly from plants.    Decomposers :- are microorganisms which decompose dead plants and     animals. They decompose complex organic substances into simple inorganic     substances in the soil which are again used by plants. ii) Abiotic components :- are the non living components like air, water, soil,     minerals,  sunlight , temperature, wind etc.
Page 3


1. Effect of adding waste to the environment :-    Human activities produce a lot of waste materials which are thrown away into the environment. These wastes cause pollution of air, water and soil.   The waste materials produced are of two main types. They are biodegradable wastes and non biodegradable wastes. i) Biodegradable wastes :- are wastes which are decomposed into harmless substances by microorganisms.    Eg :- vegetables, fruits, pulses, cereals, cotton, jute, wool, wood,  leather, paper, animal dung, animal bones etc. ii) Non biodegradable wastes :- are wastes which are not decomposed by microorganisms.    Eg :- polythene bags, plastics, synthetic fibres, glass, metals, synthetic rubber, insecticides, pesticides etc.  2. Ecosystem and its components :- a) Ecosystem :-    An ecosystem consists of all the living organisms in an      area along with the non living components and their interaction.     There are different types of ecosystems. They are :-  i) Natural ecosystems  :- like forests, deserts, grass lands, mountains,      ponds, lakes, rivers, oceans etc.  ii) Artificial ecosystems :- like gardens, parks, crop fields, aquarium, zoo etc. b) Components of an ecosystem :-     An ecosystem consists of two main components. They are biotic and abiotic      components. i) Biotic components :- are the living components like plants, animals and     microorganisms. They consist of producers, consumers and decomposers.    Producers  :- are green plants which produce food by photosynthesis.    Consumers :- are herbivores which get their food directly from plants,     carnivores which get their food indirectly from plants and omnivores which     get their food directly or indirectly from plants.    Decomposers :- are microorganisms which decompose dead plants and     animals. They decompose complex organic substances into simple inorganic     substances in the soil which are again used by plants. ii) Abiotic components :- are the non living components like air, water, soil,     minerals,  sunlight , temperature, wind etc. 3a) Food chain :-     A food chain is the flow of food energy from one organism to the next and to 
the next and so on. They usually start with a producer (plants) and end with a 
carnivore. In a food chain an organism gets food from one group of organisms.                        eaten by                         eaten by Eg:-  Grass                      Deer                          Lion         (producer)              (primary consumer)       (secondary consumer)                         eaten by                        eaten by                       eaten by          Grass                  Insects                     Frog                       Snake      (producer)           (primary consumer)      (secondary consumer)     (tertiary consumer)                  eaten by                 eaten by                      eaten by                        eaten by    Grass             Moth                     Frog                     Snake                 Hawk (producer)   (primary consumer)    (secondary consumer)   (tertiary consumer)   (quarternary consumer) 
Page 4


1. Effect of adding waste to the environment :-    Human activities produce a lot of waste materials which are thrown away into the environment. These wastes cause pollution of air, water and soil.   The waste materials produced are of two main types. They are biodegradable wastes and non biodegradable wastes. i) Biodegradable wastes :- are wastes which are decomposed into harmless substances by microorganisms.    Eg :- vegetables, fruits, pulses, cereals, cotton, jute, wool, wood,  leather, paper, animal dung, animal bones etc. ii) Non biodegradable wastes :- are wastes which are not decomposed by microorganisms.    Eg :- polythene bags, plastics, synthetic fibres, glass, metals, synthetic rubber, insecticides, pesticides etc.  2. Ecosystem and its components :- a) Ecosystem :-    An ecosystem consists of all the living organisms in an      area along with the non living components and their interaction.     There are different types of ecosystems. They are :-  i) Natural ecosystems  :- like forests, deserts, grass lands, mountains,      ponds, lakes, rivers, oceans etc.  ii) Artificial ecosystems :- like gardens, parks, crop fields, aquarium, zoo etc. b) Components of an ecosystem :-     An ecosystem consists of two main components. They are biotic and abiotic      components. i) Biotic components :- are the living components like plants, animals and     microorganisms. They consist of producers, consumers and decomposers.    Producers  :- are green plants which produce food by photosynthesis.    Consumers :- are herbivores which get their food directly from plants,     carnivores which get their food indirectly from plants and omnivores which     get their food directly or indirectly from plants.    Decomposers :- are microorganisms which decompose dead plants and     animals. They decompose complex organic substances into simple inorganic     substances in the soil which are again used by plants. ii) Abiotic components :- are the non living components like air, water, soil,     minerals,  sunlight , temperature, wind etc. 3a) Food chain :-     A food chain is the flow of food energy from one organism to the next and to 
the next and so on. They usually start with a producer (plants) and end with a 
carnivore. In a food chain an organism gets food from one group of organisms.                        eaten by                         eaten by Eg:-  Grass                      Deer                          Lion         (producer)              (primary consumer)       (secondary consumer)                         eaten by                        eaten by                       eaten by          Grass                  Insects                     Frog                       Snake      (producer)           (primary consumer)      (secondary consumer)     (tertiary consumer)                  eaten by                 eaten by                      eaten by                        eaten by    Grass             Moth                     Frog                     Snake                 Hawk (producer)   (primary consumer)    (secondary consumer)   (tertiary consumer)   (quarternary consumer) 
Page 5


1. Effect of adding waste to the environment :-    Human activities produce a lot of waste materials which are thrown away into the environment. These wastes cause pollution of air, water and soil.   The waste materials produced are of two main types. They are biodegradable wastes and non biodegradable wastes. i) Biodegradable wastes :- are wastes which are decomposed into harmless substances by microorganisms.    Eg :- vegetables, fruits, pulses, cereals, cotton, jute, wool, wood,  leather, paper, animal dung, animal bones etc. ii) Non biodegradable wastes :- are wastes which are not decomposed by microorganisms.    Eg :- polythene bags, plastics, synthetic fibres, glass, metals, synthetic rubber, insecticides, pesticides etc.  2. Ecosystem and its components :- a) Ecosystem :-    An ecosystem consists of all the living organisms in an      area along with the non living components and their interaction.     There are different types of ecosystems. They are :-  i) Natural ecosystems  :- like forests, deserts, grass lands, mountains,      ponds, lakes, rivers, oceans etc.  ii) Artificial ecosystems :- like gardens, parks, crop fields, aquarium, zoo etc. b) Components of an ecosystem :-     An ecosystem consists of two main components. They are biotic and abiotic      components. i) Biotic components :- are the living components like plants, animals and     microorganisms. They consist of producers, consumers and decomposers.    Producers  :- are green plants which produce food by photosynthesis.    Consumers :- are herbivores which get their food directly from plants,     carnivores which get their food indirectly from plants and omnivores which     get their food directly or indirectly from plants.    Decomposers :- are microorganisms which decompose dead plants and     animals. They decompose complex organic substances into simple inorganic     substances in the soil which are again used by plants. ii) Abiotic components :- are the non living components like air, water, soil,     minerals,  sunlight , temperature, wind etc. 3a) Food chain :-     A food chain is the flow of food energy from one organism to the next and to 
the next and so on. They usually start with a producer (plants) and end with a 
carnivore. In a food chain an organism gets food from one group of organisms.                        eaten by                         eaten by Eg:-  Grass                      Deer                          Lion         (producer)              (primary consumer)       (secondary consumer)                         eaten by                        eaten by                       eaten by          Grass                  Insects                     Frog                       Snake      (producer)           (primary consumer)      (secondary consumer)     (tertiary consumer)                  eaten by                 eaten by                      eaten by                        eaten by    Grass             Moth                     Frog                     Snake                 Hawk (producer)   (primary consumer)    (secondary consumer)   (tertiary consumer)   (quarternary consumer) b) Food web :-    Food web is a group of several interconnected food chains. In a food 
web an organism gets food from more than one group of organisms.
Read More
89 docs

Up next

89 docs
Download as PDF

Up next

Explore Courses for Class 10 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Download the FREE EduRev App
Track your progress, build streaks, highlight & save important lessons and more!
Related Searches

Our Environment Class 10 PPT

,

Semester Notes

,

past year papers

,

practice quizzes

,

Sample Paper

,

pdf

,

Objective type Questions

,

Extra Questions

,

Free

,

Previous Year Questions with Solutions

,

ppt

,

Summary

,

mock tests for examination

,

Our Environment Class 10 PPT

,

study material

,

Our Environment Class 10 PPT

,

video lectures

,

Exam

,

MCQs

,

Important questions

,

Viva Questions

,

shortcuts and tricks

;