Final answer:
The code is a Python conditional statement that will output "you are an adult" since the variable age is equal to 18 which satisfies the condition age >= 18.
Step-by-step explanation:
Conditional statements (if, else, and elif) are fundamental programming constructs that allow you to control the flow of your program based on conditions that you specify.
They provide a way to make decisions in your program and execute different code based on those decisions.
The code provided is a simple Python conditional statement that checks the value of the variable age.
Given that age is set to 18, the condition age>=18 evaluates to true.
Therefore, the output of the provided code will be the message inside the if block:
"you are an adult"
As the condition for the else statement will not be met, the code inside it will not be executed, and thus the message "you are still a child" will not be displayed.