The following items were taken in separate containers and the containers were filled with soil.
(i) Newspapers (ii) Plastic bags (iii) Broken glass pieces (iv) Fruit peel (v) Aluminium cans (vi) Wood piece
The soil was made moist with water. Each container was buried in a pit made in the earth. After 5 weeks it was observed that some of the items had rotten completely whereas some of them did not undergo any change.
Which of the above items had rotten completely?

Options

A. (i), (ii) and (vi)
B. (ii), (iii) and (vi)
C. (i) and (iv)
D. (iv) and (v)

Explanation

To determine which items had rotted completely after being buried in soil for 5 weeks, we need to classify the items based on their biodegradability. Here’s the step-by-step solution:

### Step 1: Identify the items
The items mentioned in the question are:
1. Newspapers
2. Plastic bags
3. Broken glass pieces
4. Fruit peel
5. Aluminium cans
6. Wood piece

### Step 2: Classify the items
We need to classify these items into biodegradable and non-biodegradable categories:
- **Biodegradable items**: These are materials that can be decomposed by microorganisms.
- Newspapers
- Fruit peel
- Wood piece
- **Non-biodegradable items**: These materials do not decompose easily and can persist in the environment for a long time.
- Plastic bags
- Broken glass pieces
- Aluminium cans

### Step 3: Analyze the decomposition process
After 5 weeks of being buried in moist soil:
- **Biodegradable items**:
- Newspapers and fruit peel are likely to have rotted completely due to the action of bacteria and other microorganisms.
- The wood piece may have partially decomposed but not completely.

- **Non-biodegradable items**:
- Plastic bags, broken glass pieces, and aluminium cans would show no change as they do not decompose.

### Step 4: Conclusion
Based on the analysis, the items that had rotted completely after 5 weeks are:
- **Newspapers**
- **Fruit peel**

### Final Answer
The items that had rotted completely are:
1. Newspapers
2. Fruit peel

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