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6. crude oil is is mainly made up of

  • oil
  • hydrocarbons
  • carbon
  • oxygen
  • hydrocarbonates

7. the name of a polymer if the molecules are packed more closely together

  • heavy polymer
  • crystalline polymer
  • closed polymer
  • crystal polymer

8. Insulin is produced in the

  • pancreas
  • stomach
  • liver
  • kidneys

9. why are additives put in food

  • to make it more healthier
  • to make it smell nice
  • to stabilize, preserve
  • to make people buy it

10. hair, muscle and haemogloblin conist mainly of

  • carbon
  • protein
  • oxygen
  • insulin