Question

colourList = ["red", "orange", "yellow", "green", "blue", "indigo", "violet"] PRINT ("The rainbow colours are: ") FOR colour in colourList: PRINT colour This code uses: Selection Iteration Sequencing

Answer 1

The provided code snippet illustrates a simple structure in programming. Let's analyze the components you mentioned: selection, iteration, and sequencing.

1. **Sequencing**: This is the order in which statements are executed. In your code:
```python
PRINT ("The rainbow colours are: ")
```
is executed first, followed by the iteration block that prints each color. This shows a clear sequence of operations.

2. **Iteration**: This is the process of repeating a block of code. In the provided code:
```python
FOR colour in colourList:
PRINT colour
```
This part represents iteration because it repeats the print action for each color in the `colourList`.

3. **Selection**: This typically involves making choices based on conditions (like `if`, `else`, etc.). However, in the provided code snippet, there is no selection structure present. You are simply printing each color without any condition or choice being made.

To summarize, your code demonstrates **sequencing** and **iteration**, but **selection** is not utilized in this specific snippet.

If you want to introduce selection, you could add a conditional statement to print only certain colors, like this:

```python
colourList = ["red", "orange", "yellow", "green", "blue", "indigo", "violet"]
print("The rainbow colours are:")
for colour in colourList:
if colour in ["red", "blue", "violet"]: # This is the selection part
print(colour)
```

This modified version uses selection to filter which colors to print.