About us

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  Welcome to PK Tech Channel. 

This channel about Computer related Information Technology Skill that you can use to grow your knowledge, abilities and development and management of technology. 

For business : vpraveenkumar678@gmail.com

PK Tech channel owner:

Praveen Kumar










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Air Pollution ppt

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Air Pollution What Is Air Pollution??                     Air pollution is the introduction of  chemiclas, particular matter, or biological materials that cause harm to discomfort to humans or other living organisms, or cause damage to the natural environment or built environment, into the atmosphere. Types Of Air Pollution There are several types of air pollution, mainly Indoor Air Pollution and Outdoor Air Pollution. These include smog, acid rain, the green house effect and hole in ozone layer. One type of air pollution is the release of particles into the air. Another type of air pollution is the release of poisonous gases.  Outdoor Air Pollution Smog Smog is a type of large scale out pollution. It is caused by chemical reaction between pollutants derived from different sources. Indoor Air Pollution      It more dangerous than outdoor air pollution because we do everything in enclosed environme...
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Power Point Presentation

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  SAVE WATER SAVE LIFE Pollution of water   Domestic Pollution Safe water supply sanitation  - open defecation Drainage  Solid waste disposal  Agriculture Pollution  Pesticides Fertilizers  Over extraction of ground water Water and health The body is comprised of 72% of water.  we cannot live without water for more than 24 hours.  1.8 million people die from diarrhea death where 90% are children  88% is attributed to unsafe water supply, inadequate sanitation and hygiene.   Environment Don’t throw your household waste near drinking water sources Clean your house and surroundings daily Don’t throw paper, plastic, households wastes into open drains that run through the street Throw litter into a bin and dispose of it properly Don’t cut down trees but grow more plants See that the drains are not blocked Do you know? Flushing the toilet accounts for 30% of household water usage. By placing a brick in the toilet cistern we could...
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Land Pollution ppt

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 LAND POLLUTION What is land pollution ???  Land pollution, in other words, is nothing but degradation, damage to the surface of the earth and its soil because of human activities.  The increase in a number of cities and towns due to enhancement in a population are also the reasons for land pollution.  A land gets polluted even due to lack of green cover on land which results in soil erosion. Causes of Land Pollution: Deforestation and soil erosion Mining activities Agricultural activities Construction activities Industrialization Nuclear waste Sewage treatment Deforestation and soil erosion           Deforestation which makes dry land is one of the major reasons of land pollution. In this, we need to observe that once a land becomes dry or barren then it cannot be regained i.e. it will be very difficult to regain its fertility. Mining activities           At the time of mining activities and extraction ac...
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