Karteikarten
Sustainability
Karten in diesem Stapel (26)
- 1What does conversation involve?Conservation involves trying to preserve the variety of plants and animals and the habitats that they live in.
- 2Why do people think that it is important?People think that it is important because it can:
- protect our food supply
- prevent any damage to food chains, which can be hard to predict
- protect plants and animals that might be useful for medical uses
- protect organisms and habitats that people enjoy to visit and study. - 3When may a species be at risk of extinction?Species are at risk of extinction if the number of individuals or habitats falls below critical levels.
- 4Give three important factors to bear in mind when trying to conserve.When trying to conserve species the important factors to bear in mind include:
- the size of the population (if the population is below a critical level there is unlikely to be enough genetic variation in the population to enable it to survive)
- the number of suitable habitats that are available for the organism to live in
- how much competition there is from other species. - 5What have whales been hunted for hundreds of years for?Whales have been hunted for hundreds of years for their body parts, which are used in many products.
- 6What are live whales also important for?Live whales are also important for the tourist trade.
- 7Why are some whales kept in captivity?Some whales are kept in captivity for research or captive breeding programmes or just for our entertainment.
- 8However, what do many people object to?However, many people object when whales lose their freedom.
- 9What has it been difficult to set up?It has been difficult to set up and police international agreements on whaling and some countries want to lift the ban on whaling.
- 10Why do scientists believe there is a need to kill some whales?Scientists believe there is a need to kill some whales to help find out more about how whales can survive at extreme depths.
- 11However, why could they study the whales without killing them?However, they could study them without killing them. Migration patterns and whale communication can only be investigated if the animal is alive.
- 12What can spermacetti from whales be used for?Spermacetti is used in high-grade machine oil.
- 13What is whale skin used for?Whale skin is used in belts, shoes, handbags and luggage.
- 14What can sinews from whales be used for?Sinews from whales can be used in tennis rackets.
- 15What is sperm whale oil that is taken from bone and skin used in?Sperm whale oil taken from bone and skin is used in high-grade alcohol, shoe cream, lipstick, ointment, crayons, candles, fertiliser, soap and animal feeds.
- 16What is whalemeat used in?Whalemeat is used in pet food and human food.
- 17What are bones form whales used in?Bone from whales is used in fertiliser and animal feeds.
- 18What is whale liver used in?Liver from whales is used in oil.
- 19What is ambergris from intestine is used in?Ambergris from intestine is used in perfumes.
- 20What are teeth from whales used in?Teeth from whales are used in buttons, piano keys and jewellery.
- 21What does sustainable development mean?Sustainable development means taking enough resources from the environment for current needs, while leaving enough for the future and preventing permanent breed.
- 22Give two examples of sustainable development.For example:
- Fishing quotas are set, so that there are enough fish left breed.
- Woods are replanted to keep up the supply of trees. - 23As the world population increases it is crucial to carry out sustainable development. - Fossil fuels will run out. As there is an increase in demand for energy, what must we do?- Fossil fuels will run out. As there is an increase in demand for energy, we must manage alternative fuels, such as wood.
- 24As the world population increases it is crucial to carry out sustainable development. - We need to supply increasing amounts of food for growing populations without doing what?- We need to supply increasing amounts of food for growing populations without destroying large areas of natural habitats.
- 25As the world population increases it is crucial to carry out sustainable development. - Large amounts of waste products must be disposed so as to prevent what?- Large amounts of waste products must be disposed of so as to prevent or minimise pollution.
- 26If all this is achieved what could it help to save?If all this is achieved it should help to save endangered species.
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- GCSE Science Year 10 Karteikarten am Sustainability, erstellt von annjb2898 am 01/06/2014.
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- annjb2898
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