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Activity 3.4: Process diagram Some IELTS Task 1 diagrams show a process. To organise this data logically, you should summarise the main stages of the process. The following diagram shows how essential oil is produced from leaves. There are two main stages: taking the oil out of the leaves taking the oil out of the water. A good structure for this answer is: Overview Stage 1 Stage 2 Activity: Where should the information go? Write O for overview, 1 for paragraph 1, and 2 for paragraph 2. cold oil rises to top of water Hot: water and oil can mix. Cold: water and oil separate. steam and oil mixture cooled down steam and oil rise to top steam and oil go through cooling coil in cold water water extracts oil then oil needs to come out of water steam mixes with leaves Oil taken from top of tank. Water taken from bottom of tank.

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