Write code that prompts the user to enter a positive nonzero number and validates the input. Print the number of digits that this number has. For example, the number 547 has 3 digits. To solve the problem, you must count how many times you can divide the number by 10 and get a nonzero remainder. For example, dividing 547 by 10 results in 54. Dividing 54 by 10 results in 5. Dividing 5 by 10 results in zero.  You must use a loop for this problem.

Unlike other languages, in Python the number of values a function can return is limited to one.  

What type of loop structure repeats the code a specific number of times?  

Multiple Boolean expressions can be combined by using a logical operator to create ________ expressions.  

Nucleotides have a phosphate group attached at the _________ blank carbon atom of the sugar.

In terms of how much energy input is required to produce food, it is more energetically efficient to consume:

Which action increases the carbon footprint?

Which compound is the MOST potent greenhouse gas?

Which factor does NOT directly contribute to sea level rise?

What is a disadvantage of mining for tar sands oil?