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| Question | Answer |
| What does conversation involve? | Conservation involves trying to preserve the variety of plants and animals and the habitats that they live in. |
| Why 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. |
| When 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. |
| Give 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. |
| What 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. |
| What are live whales also important for? | Live whales are also important for the tourist trade. |
| Why are some whales kept in captivity? | Some whales are kept in captivity for research or captive breeding programmes or just for our entertainment. |
| However, what do many people object to? | However, many people object when whales lose their freedom. |
| What 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. |
| Why 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. |
| However, 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. |
| What can spermacetti from whales be used for? | Spermacetti is used in high-grade machine oil. |
| What is whale skin used for? | Whale skin is used in belts, shoes, handbags and luggage. |
| What can sinews from whales be used for? | Sinews from whales can be used in tennis rackets. |
| What 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. |
| What is whalemeat used in? | Whalemeat is used in pet food and human food. |
| What are bones form whales used in? | Bone from whales is used in fertiliser and animal feeds. |
| What is whale liver used in? | Liver from whales is used in oil. |
| What is ambergris from intestine is used in? | Ambergris from intestine is used in perfumes. |
| What are teeth from whales used in? | Teeth from whales are used in buttons, piano keys and jewellery. |
| What 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. |
| Give 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. |
| As 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. |
| As 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. |
| As 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. |
| If 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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