Home CHEMISTRY TOPIC 4: POLLUTION | CHEMISTRY FORM 4

TOPIC 4: POLLUTION | CHEMISTRY FORM 4

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POLITICAL AND ECONOMIC DEVELOPMENT IN TANZANIA SINCE INDEPENDENCE

Pollution can be defined as the introduction by human (or animal) activities, directly or indirectly, of substances or energy into the environment resulting in harmful effects which may endanger human health and harm living resources and ecosystems.

Concept of Pollution
The Concept of Pollution
Explain the concept of pollution
Pollution can also be defined as the introduction of contaminants or pollutants into the natural environment. The environment comprises of living (biotic) and non-living (abiotic) things such as plants, animals, air,
land and water.
Contaminants or pollutants are harmful substances introduced into the environment that disturb the balance of nature. Pollution can be in the form of chemical substances or energy such as noise, heat or light.

Human activities play a major role in the pollution of the environment.
Humans engage in a myriad of activities such as agriculture,
manufacturing, transport, waste disposal, mining etc.

All of these activities contribute to environmental pollution in one way or another.

There are three main types of pollution:
Terrestrial (land) pollutionAquatic (water) pollutionAerial (air) pollution

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