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Humans and the Environment: Negative Impacts

Subjects / Biology / Living Organisms And Their Environment

Price: £2.95 Duration: 30mins Full topic price: £5.95

We humans are just one of the many different organisms that live on our planet. Unfortunately, our success and rapid population growth have had many negative impacts on the environment. This title starts off by looking at how living organisms are able to interact to live successfully alongside one another in their habitats, and it finishes by looking at how humans have upset this delicate balance. We'll discuss the way organisms compete for resources, and why it's important for them to adapt for survival. Then we'll look at the important relationships between organisms, such as that between predators and their prey. This title also explains how scientists study populations of plants and animals, and discusses the problems associated with the rise of human populations, such as pollution and the exhaustion of resources.

Author: Gemma Young Publisher: GCSEPod®
Narrator: Pauline Addis ISBN: 978-1-84906-240-4
Video ISBN: 978-1-84906-740-9

Chapters

  1. Adaptation and Competition
  2. Interdependence and Predation
  3. Size and Distribution of Organism Populations
  4. Human Population Increase
  5. Pollution
  6. Deforestation and the Greenhouse Effect

Exam Board Relevance

  • Edxcel
  • AQA
  • CEA
  • IGCSE (EdExcel)
  • OCR
  • SQA
  • WJEC
  • IGCSE (CiE)

Includes original GCSEPod image art. Additional pictorial images created by Damon Smith

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Curriculum and Exam Board Information

Key Issues

Titles

Chapters

  • Acidic gases resulting in acid rain
  • ADAPTATION AND COMPETITION
  • air and the effects of pollution by soot and sulphur dioxide on plants
  • An increase in the Earth's temperature of only a few degrees Celsius may cause quite big changes in the Earth's climate may cause a rise in sea level
  • Carbon dioxide and methane in the atmosphere absorb most of the energy radiated by the Earth
  • Deforestation
  • describe ways that human activity can damage the environment and affect the plants and animals living there
  • Effects of deforestation and over fishing
  • Environmental change
  • Factors affecting distribution and population size of organisms
  • Harmful substances in vehicle exhaust gases
  • Harmful waste from burning fossil fuels
  • Humans reduce the amount of land available for other animals and plants by building, quarrying, farming and dumping waste
  • Impact of humans on the environment - effects of air and water pollution
  • Impact on the environment - population size, economic factors, industrial requirements
  • Increases in the numbers of cattle and rice fields have increased the amount of methane released into the atmosphere
  • Increasing levels of these gases may be causing global warming by increasing the 'greenhouse effect'
  • Increasing population size leading to pollution
  • Industry
  • Interdependence and predation
  • land and biodegradable and non biodegradable materials
  • land and deforestation
  • land and waste management; (land fill versus incineration as a means of disposal)
  • Large scale deforestation in tropical areas, for timber and to provide land for agriculture, has increased the release of carbon dioxide into the atmosphere (because of burning and the activities of microorganisms)
  • Large scale deforestation in tropical areas, for timber and to provide land for agriculture, has reduced the rate at which carbon dioxide is removed from the atmosphere and 'locked-up' for many years as wood
  • Living organisms can be used as indicators of pollution
  • Living organisms can be used as indicators of pollution: invertebrate animals can be used as water pollution indicators
  • Living organisms can be used as indicators of pollution: lichens can be used as air pollution indicators
  • Loss of forest leads to reduction in biodiversity. Some of the organisms that are lost may have been of future use
  • Methods of reducing air pollution by vehicles
  • More waste is being produced which, unless properly handled, may pollute air - with smoke and gases such as sulfur dioxide which contribute to acid rain
  • More waste is being produced which, unless properly handled, may pollute land - with toxic chemicals, such as pesticides and herbicides, which may be washed from land into water
  • More waste is being produced which, unless properly handled, may pollute water - with sewage, fertiliser or toxic chemicals
  • Pollution
  • Population Increase
  • Rapid growth in the human population and an increase in the standard of living means that increasingly more waste is produced, unless waste is properly handled more pollution will be caused
  • Rapid growth in the human population and an increase in the standard of living means that raw materials, including non-renewable energy resources, are rapidly being used up
  • Some of this energy is re-radiated back to the Earth and so keeps the Earth warmer than it would otherwise be
  • The Greenhouse Effect
  • THE IMPACT OF HUMAN ACTIVITY ON THE ENVIRONMENT
  • water and effluent from water cooling processes
  • water and sewage treated and untreated, eutrophication

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