Study for secondary:science

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Mavmaestro
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245946
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Study for secondary:science
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2013-11-12 13:29:57
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Science
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  1. what is the the definition (meaning) of the word ecology?
    ecology is the study of relationships between plants, animals and their environment.
  2. What is the definition of an ecosystem?
    an ecosystem is all the plants and animals in an area interacting with each other and their environment.
  3. What is the definition of a habitat?
    A habitat is the area where a plant or animal lives.
  4. Give four examples of an ecosystem.
    • Deserts
    • tropical rainforest
    • grasslands
    • seashores
  5. give five examples of a habitat.
    • Grassland
    • hedgerow
    • rocky seashore
    • Woodland
    • school field
  6. What are producers?
    Producers are plants that make theirs own food.
  7. How do producers make their own food?
    Producers make their own food through photosynthesis.
  8. What is the difference between a habitat and an ecosystem?
    Ecosystems are large areas while habitats are more smaller, localised areas.
  9. What is a consumer.
    A consumer is an animal that gets it food from eating other animals or plants.
  10. Classify the three different types of animals and explain what they are.
    • herbivores= animals that only eat plants e.g. a giraffe.
    • carnivores= animals that only eat meat e.g. a lion.
    • omnivores= animals that eat both plants and meat e.g. Crows.
  11. What is a decomposer?
    A decomposed is a organism that feeds on dead plants & animals.
  12. What is adaption?
    Adaption is a structure or habitat that helps an organism survive in its habitat.
  13. explain competition.
    • Competition is when animals or plants compete against each other either for food,mates,space,light etc. 
    • e.g.
    • grass competes against each other for light and space.
  14. What is conservation?
    Conservation is the protection and wise management of natural resources to prevent living things becoming extinct.
  15. Explain pollution.
    Pollution is the addition of unwanted materials to the environment.
  16. What are the materials that cause pollution called?
    Pollutants.
  17. What are the 3 main types of pollution?
    • Air.
    • soil.
    • water.
  18. What is the main source of air pollution?
    The burning of fossil fuels such as turf, oil, coal, gas & petrol.
  19. What is The main source of water pollution?
    Poor management of sewage, oil spills & agricultural runoff.
  20. What is the main source of soil pollution?
    Acid rain, overuse of fertilisers, improper dumping of wastes.
  21. What does waste management include?
    • Incineration
    • landfill
    • the 3 R's
  22. What do the three R's stand for?
    • Reduce
    • reuse
    • recycle

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