A volcano because its always erupting
He could either use the tab key to indent, if you want to make the ruler visible, you can go to the view tab and click the check mark next to show ruler.
Answer:
A variable is a name associated with a data value; we say that the variable "stores" or "contains" the value. Variables allow us to store and manipulate data in our programs.
Answer:
It can be "ON" or "OFF". So it can store the numbers 1 and 0, but it certainly doesn't have the capacity to store a letter of the alphabet.
Explanation: