Social and economic factors to consider when using fuels

////Social and economic factors to consider when using fuels

Social and economic factors to consider when using fuels

Oil spills are destructive to vegitation. Image credit africanewscircle.com

Oil spills are destructive to vegetation. Image credit africanewscircle.com

ZIMSEC O Level Combined Science Notes: Social and economic factors to consider when using fuels

  • The extraction and consumption of fuels has led to a lot of problems in recent years
  • Problems include:
  • Pollution which includes
  • Land pollution as oil is spilled during drilling, extraction and transportation
  • Sea pollution as oil is spilled during drilling, extraction and transportation
  • Air pollution when fuels are burnt
  • In addition to this direct contamination pollution results in
  • The death of animals and birds
  • The destruction of arable land and the destruction of animal habitats
  • The disruption of ecosystems
  • Fuels are burnt in limited air resulting in carbon monoxide and soot pollution
  • Petrol additives such as lead that are added to prevent “knocking”
  • Vaporize when burnt leading to higher concentration of lead in urban areas
  • Lead compounds cause brain damage
  • Coal components also escape and pollute the air when coal is burnt
  • Sulphur and phosphorus compounds from the coal are oxidized
  • This dissolve in the air resulting in acid rain
  • Acid rain is harmful to structures, plants and animals
  • Wood also results in pollution
  • Excessive cutting of wood results in deforestation
  • This in turn leads to land degradation
  • Plant and animal habitats are
  • Most fuel sources are non-renewable
  • This means that once the resource has been used up it cannot be replenished/remade
  • Examples of non-renewable sources of energy include fossil fuels
  • Renewable energy sources include solar and hydro power(water energy)

Solving some of the problems results from the use of fuels

  • Some of the problems resulting from the use of fuels can be mitigated
  • Mitigation steps can include:
  • The preferential use of renewable energy sources of energy such as solar
  • Use of “clean” sources of energy such as wind, water and solar
  • Replanting of trees
  • Using fast growing trees such as eucalyptus for fuel
  • Creating protected sanctuaries for endangered animals
  • Improving the fuel efficiency of engines
  • Use public transport systems to reduce the number of private cars
  • Introducing carbon taxes
  • Setting up methane digestors and
  • Growing catch crops such as sunflower and maize
  • A catch crop is a crop that can be used for both food and energy
  • For example sunflower oil can be mixed with diesel
  • Blending fuels
  • Using biofuels

To access more topics go to the Combined Science Notes page.

By |2017-01-17T11:13:05+00:00May 20th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|Comments Off on Social and economic factors to consider when using fuels

About the Author:

He holds an Honours in Accountancy degree from the University of Zimbabwe. He is passionate about technology and its practical application in today's world.
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