Environmental Management System Notes 2020

Chapter - 4.0

Environmental management

Ecosystem:-

• Ecosystem is formed by biotic factors and their interaction with each other.
• Each factor plays very important role in the ecosystem.
• Herbivores - Deer, goat, sheep, cattle, horses, camels etc. feed upon producers.
• Predators – Lion and Tiger.
• Caterpillars and termites, insect are responsible for cleaning the environment

environmental

Relation between Environment and Ecosystem:-

• Physical, Chemical and biological factors affecting the living organisim in any possible way is collectively called as environment.
• Environment is the condition in surrounding.
• It includes biotic, abiotic natural and artificial factors.
• Main type are – Natural environment 

                                - Artificial environment.

• Natural environment consist of air, atmosphere, water, land, living organism.
• The science that deals with the study of interaction between biotic and abiotic factors of the environment is called as ecology.
• Environmental balance is maintained through continues operation of
•  Natural cycles like water cycle, carbon cycle, gaseous, nitrogen cycle, oxygen cycle.

 

Environmental Conservation:-

• Unnecessary and unacceptable change in the surrounding environment
  due to natural events or human activities is called as environment Pollution.
• Types of pollution:- Air, Water, sound, soil, thermal, light pollution.
• Environmental conservation has become the need of an hour.
• Radioactive Pollution:- UV and IR radiations are natural radiation.
• X-rays and atomic energy plants are artificial radiations.
• Effects of radiation are:
  1) Cancerous ulceration
  

2) Tissue in the body are destroyed.

3) Genetic changes occur.

4)  Vision is adversely affected.

 

Need of Environment Conservation:-

• Large scale participation of the people in environment conservation is required.
• Positive attitude and affection towards environmental should be inculcated among the children since childhood.       

 

Environmental Conservation Our Social Responsibility:-

• There is interrelationship between human and environment.
• Human utilized all the natural resources as much as possible.
• Human itself only can conserve and improve the quality of Nature.

 

Environmental Conservation and biodiversity:-

• Biodiversity is the richness of living organisim in nature due to presence of living organisim in nature due to presence of varieties of organisims, ecosystem  and genetic  variation within a species.
• Biodiversity occurs at three different levels.

a) Genetic diversity.
B) Species diversity .
c) Ecosystem diversity.

 

 

Classification of threatened species:-

1) Endangered Species.

2) Rare Species.

3) Vulnerable Species.

4) Indeterminate Species.

< chapter - 3.2 - Life Processes class 10 solutions 2020