Whales-

• From which sources oil can be extracted?
• What are whales?
• What is called blubber and how does it help the whales?
• Where are the Arctic Seas?How is the climate there?
• How is whale oil produced?
• Can it be used for human consumption?
• Which are two types of fish which provide nourishing oil?
• What is the use of halibut and cod oil?
• What kind of oil is used in transportation?
• What is the use of vegetable oil?
• What is the use of animal oil?
• What is the use of mineral oil?