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Subject Details

Dept : MECH

Sem : 2

Regul : 2019

Faculty : Prof. P. GaneshKumar

phone : NIL

E-mail : ganeshkumar@snsce.ac.in

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Lecture Notes

UNIT 1:

Ecosystem-Definition, scope and importance

Concept of an ecosystem – structure and function of an ecosystem

Producers, consumers and decomposers

Food chains, Food webs and Ecological pyramids

Forest ecosystem

Aquatic ecosystems (Ponds & Oceans).

UNIT 2:

Introduction to biodiversity definition

Genetic, species and ecosystem diversity

Values of biodiversity

Endangered and endemic species of India

Threats to biodiversity

Conservation of biodiversity: In-situ and Ex-situ conservation of biodiversity.

UNIT 3:

Definition–causes, effects and control measures

Air pollution

Water pollution

Soil pollution

Noise pollution

Nuclear hazards

UNIT 4:

Introduction –Types-Water resources

Use and over- utilization of surface and ground water,

Floods, drought, conflicts over water, dams-benefits and problems.

Energy resources: Growing energy needs,

Renewable and non renewable energy sources and use of alternate energy sources. case studies.

Role of an individual in conservation of natural resources

UNIT 5:

Sustainable development -From unsustainable to sustainable development

Urban problems related to energy

Climate change, global warming, acid rain, ozone layer depletion

Solid waste management - Rain water harvesting

E -waste Management Case studies.

Role of information technology in environment and human health

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