Rearrange the following sentences to form a coherent paragraph: 1. The primary purpose of this process is to ensure that the food we eat is safe and does not contain harmful bacteria or other contaminants. 2. Food processing is a series of methods used to transform raw ingredients into consumable products. 3. These methods can range from simple actions like cutting and grinding to more complex procedures such as pasteurization and fermentation. 4. Furthermore, it also helps to preserve food, extend its shelf life, and enhance its nutritional value.

Correct — A. Sentence 2 names the topic outright — 'Food processing is a series of methods…' — so it opens.

3 picks up those methods: 'These methods can range from simple actions like cutting and grinding…'
1 gives the purpose of 'this process': to ensure that the food we eat is safe.

4 adds a further benefit: 'Furthermore, it also helps to preserve food' → 2, 3, 1, 4, option (a).

Why the others are wrong

• (b)
  1, 2, 3, 4 — Opens with 'The primary purpose of this process' — this points back to a process not yet named. Food processing is introduced in sentence 2, so 2 must come first.
• (c)
  3, 1, 4, 2 — Opens with These methods, which has no earlier methods to refer to, and saves the defining sentence, 'Food processing is a series of methods', for the very end.
• (d)
  4, 2, 1, 3 — Opens with Furthermore, a connector that adds to a point already made. A paragraph cannot begin by adding to nothing, and 'it also helps' has no process to refer to yet.

Reference words and connectors fix a jumble's order. These methods needs methods named earlier, 'this process' needs a process named earlier, and Furthermore … also needs a point to add to.

Sentence 2 leans on nothing, so it opens. After it, 3 expands the methods, 1 states the primary purpose, and 4 adds the further benefits.

Key facts

• A sentence that opens with Furthermore adds to a point already made, so it cannot open a paragraph.
• These methods in sentence 3 refers back to 'a series of methods' in sentence 2.
• Sentence 1's 'this process' needs food processing named first, which happens in sentence 2.

Common traps

• Opening with sentence 1 because 'The primary purpose' sounds like a topic sentence — 'this process' points back.
• Placing 4 before 1 — Furthermore and also mark 4 as an addition to the primary purpose, so it comes after it.

No directly related past PYQ was found.